Larken Ramdisk
28 messages · 2011-05-21 → 2012-10-10 · Yahoo Group era · View archive on archive.org
Participants: pxx1_2000_32724, Rod H, 8bit, Jack Boatwright
Attachments in thread: 1 (see the archive.org item)
Preserved from the Timex/Sinclair 2068 Yahoo Group (2001–2019), which is no longer online. Text reproduced from the archive.org archive; email addresses masked.
Messages
1. RE: [ts2068] Larken Ramdisk
Rod H · Sat, 21 May 2011 11:09
1) the components are on the "front face" of the board, male edge connector, and are pushed through and soldered on the "back" trace side.
2) my board's resistor pack has ten legs with one, closest to the bottom when board vertical, bent out.(no hole)
3) component numbers do change depending on maker. Values are all that are important. I have the build it instructions If you want. Very easy to do. If you're new at soldering heat-sensitive components such as the memory chips then may I suggest you solder in sockets and when complete just pop in the memory chips. That's what I did. I also soldered sockets to the first row of memory chips and then popped in the second row of memory thereby doubling the board's capacity. I have the instructions for this somewhere.
To: [email]
From: [email]
Date: Sat, 21 May 2011 17:31:56 +0000
Subject: [ts2068] Larken Ramdisk
Can anyone with the Larken Ramdisk please answer a couple of questions for me?
1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the trace side. The other side is smooth without traces. Which side is the component side?
2)Concerning the resistor pack, 1K-4.7K, RP-1, there are 9 holes in the board to mount this component, does anyone have a source for this component?
3)the 32k x 8 static RAM chips I am finding that depending on the manufacturer, the number changes..
I am not a trained tech. , becoming self-taught it seems out of necessity. This must have been one of the last projects that Eric worked on because I am finding a little drawer in the electronics components cabinet where he had gathered up many of the parts required for this project. I do have a local musician friend that is a bench tech. that I may have do the actual population of the board once I determine that all of the necessary components are here....wish me luck!
2. Larken Ramdisk
pxx1_2000_32724 · Sat, 21 May 2011 17:31
Can anyone with the Larken Ramdisk please answer a couple of questions for me?
1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the trace side. The other side is smooth without traces. Which side is the component side?
2)Concerning the resistor pack, 1K-4.7K, RP-1, there are 9 holes in the board to mount this component, does anyone have a source for this component?
3)the 32k x 8 static RAM chips I am finding that depending on the manufacturer, the number changes..
I am not a trained tech. , becoming self-taught it seems out of necessity. This must have been one of the last projects that Eric worked on because I am finding a little drawer in the electronics components cabinet where he had gathered up many of the parts required for this project. I do have a local musician friend that is a bench tech. that I may have do the actual population of the board once I determine that all of the necessary components are here....wish me luck!
3. Re: [ts2068] Larken Ramdisk
8bit · Sun, 22 May 2011 00:34
On Sat, 21 May 2011 17:31:56 -0000, "pxx1_2000_32724" wrote:
> 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the
> trace side. The other side is smooth without traces. Which side is the
> component side?
Can you make a scan of the board, please?
I've made a small replacement of Larken Ramdisk, it fits under the
512kB memory chip. I need to test it some day...
> 3)the 32k x 8 static RAM chips I am finding that depending on the
> manufacturer, the number changes..
Usually 62256 (e.g. HY62256ALP-10), the outer character doesn't
really matter.
Jarek Adamski
4. RE: [ts2068] Re: Larken Ramdisk
Rod H · Sun, 22 May 2011 09:33 · 📎 1: file
Hi Neil,
I've attached a .pdf file of the RamDisk docs I have. I hope it helps. If more info is required then maybe we could just give Larry Kenny a phone call. He's gone on to other things long ago but when I spoke to him quite a while back I found him to be very approachable. He probably has docs to all his stuff stashed away. Old TS guys never throw anything away! Let me know if any of this helps.
To: [email]
From: [email]
Date: Sun, 22 May 2011 13:13:32 +0000
Subject: [ts2068] Re: Larken Ramdisk
Definitely, and thanks...yes, If you could scan the docs into something like a pdf, that would be great. I am surprised that they bent the 10th leg on the resistor pack instead of clipping it short. You say you doubled the capacity? As in now its a 500K Ramdisk? I'll take any documentation you can provide on this project and am very grateful that you replied to the cry for help. The little switching diodes, I may have some questions on, the numbers on them are soooo tiny to try to read to see if they are the correct ones...theres a drawer full of the little buggers here. Thanks for the tip on the chip sockets, I intend to take that advice. I will not be doing the soldering, I have a bud thats an electronics tech. When I am sure that I have collected all of the components, I intend to take it to him to build for me. My soldering skills have never been properly honed, even though I looked carefully at a publication I had to print years ago for Martin Marietta showing MIL standards for soldering...what was and what was not acceptable...I'll leave that to the pros....thanks again Rod I look forward to your next msg.
Peace...neil
--- In [email], Rod H <rodh64@...> wrote:
>
>
> 1) the components are on the "front face" of the board, male edge connector, and are pushed through and soldered on the "back" trace side.
>
> 2) my board's resistor pack has ten legs with one, closest to the bottom when board vertical, bent out.(no hole)
>
> 3) component numbers do change depending on maker. Values are all that are important. I have the build it instructions If you want. Very easy to do. If you're new at soldering heat-sensitive components such as the memory chips then may I suggest you solder in sockets and when complete just pop in the memory chips. That's what I did. I also soldered sockets to the first row of memory chips and then popped in the second row of memory thereby doubling the board's capacity. I have the instructions for this somewhere.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Sat, 21 May 2011 17:31:56 +0000
> Subject: [ts2068] Larken Ramdisk
>
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> Can anyone with the Larken Ramdisk please answer a couple of questions for me?
>
> 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the trace side. The other side is smooth without traces. Which side is the component side?
>
>
>
> 2)Concerning the resistor pack, 1K-4.7K, RP-1, there are 9 holes in the board to mount this component, does anyone have a source for this component?
>
>
>
> 3)the 32k x 8 static RAM chips I am finding that depending on the manufacturer, the number changes..
>
> I am not a trained tech. , becoming self-taught it seems out of necessity. This must have been one of the last projects that Eric worked on because I am finding a little drawer in the electronics components cabinet where he had gathered up many of the parts required for this project. I do have a local musician friend that is a bench tech. that I may have do the actual population of the board once I determine that all of the necessary components are here....wish me luck!
>
5. Re: Larken Ramdisk
pxx1_2000_32724 · Sun, 22 May 2011 13:13
Definitely, and thanks...yes, If you could scan the docs into something like a pdf, that would be great. I am surprised that they bent the 10th leg on the resistor pack instead of clipping it short. You say you doubled the capacity? As in now its a 500K Ramdisk? I'll take any documentation you can provide on this project and am very grateful that you replied to the cry for help. The little switching diodes, I may have some questions on, the numbers on them are soooo tiny to try to read to see if they are the correct ones...theres a drawer full of the little buggers here. Thanks for the tip on the chip sockets, I intend to take that advice. I will not be doing the soldering, I have a bud thats an electronics tech. When I am sure that I have collected all of the components, I intend to take it to him to build for me. My soldering skills have never been properly honed, even though I looked carefully at a publication I had to print years ago for Martin Marietta showing MIL standards for soldering...what was and what was not acceptable...I'll leave that to the pros....thanks again Rod I look forward to your next msg.
Peace...neil
--- In [email], Rod H <rodh64@...> wrote:
>
>
> 1) the components are on the "front face" of the board, male edge connector, and are pushed through and soldered on the "back" trace side.
>
> 2) my board's resistor pack has ten legs with one, closest to the bottom when board vertical, bent out.(no hole)
>
> 3) component numbers do change depending on maker. Values are all that are important. I have the build it instructions If you want. Very easy to do. If you're new at soldering heat-sensitive components such as the memory chips then may I suggest you solder in sockets and when complete just pop in the memory chips. That's what I did. I also soldered sockets to the first row of memory chips and then popped in the second row of memory thereby doubling the board's capacity. I have the instructions for this somewhere.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Sat, 21 May 2011 17:31:56 +0000
> Subject: [ts2068] Larken Ramdisk
>
>
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> Can anyone with the Larken Ramdisk please answer a couple of questions for me?
>
> 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the trace side. The other side is smooth without traces. Which side is the component side?
>
>
>
> 2)Concerning the resistor pack, 1K-4.7K, RP-1, there are 9 holes in the board to mount this component, does anyone have a source for this component?
>
>
>
> 3)the 32k x 8 static RAM chips I am finding that depending on the manufacturer, the number changes..
>
> I am not a trained tech. , becoming self-taught it seems out of necessity. This must have been one of the last projects that Eric worked on because I am finding a little drawer in the electronics components cabinet where he had gathered up many of the parts required for this project. I do have a local musician friend that is a bench tech. that I may have do the actual population of the board once I determine that all of the necessary components are here....wish me luck!
>
6. Re: Larken Ramdisk
pxx1_2000_32724 · Sun, 22 May 2011 13:22
Thanks Jarek,
The info on the RAM chips will help. The board for the LArken Ramdisk is approximately 5 inches by 3 inches.
> I've made a small replacement of Larken Ramdisk, it fits under the
> 512kB memory chip.
How were you able to downsize it to allow it to fit under a Ramchip?
I'll try to get you the board scan right away.
thanks again,
Neil
--- In [email], <8bit@...> wrote:
>
> On Sat, 21 May 2011 17:31:56 -0000, "pxx1_2000_32724" wrote:
> > 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the
> > trace side. The other side is smooth without traces. Which side is the
> > component side?
> Can you make a scan of the board, please?
>
> I've made a small replacement of Larken Ramdisk, it fits under the
> 512kB memory chip. I need to test it some day...
>
>
> > 3)the 32k x 8 static RAM chips I am finding that depending on the
> > manufacturer, the number changes..
> Usually 62256 (e.g. HY62256ALP-10), the outer character doesn't
> really matter.
>
>
> Jarek Adamski
>
7. Re: Larken Ramdisk
pxx1_2000_32724 · Sun, 22 May 2011 15:08
The scan is posted in the files section. You will find a PDF of the scans, one in grayscale and the other in RGB color. I do have one of higher rez if needed.....peace
--- In [email], <8bit@...> wrote:
>
> On Sat, 21 May 2011 17:31:56 -0000, "pxx1_2000_32724" wrote:
> > 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the
> > trace side. The other side is smooth without traces. Which side is the
> > component side?
> Can you make a scan of the board, please?
>
> I've made a small replacement of Larken Ramdisk, it fits under the
> 512kB memory chip. I need to test it some day...
>
>
> > 3)the 32k x 8 static RAM chips I am finding that depending on the
> > manufacturer, the number changes..
> Usually 62256 (e.g. HY62256ALP-10), the outer character doesn't
> really matter.
>
>
> Jarek Adamski
>
8. Re: [ts2068] Re: Larken Ramdisk
8bit · Sun, 22 May 2011 22:12
Hello!
On Sun, 22 May 2011 13:22:08 -0000, "pxx1_2000_32724" wrote:
> How were you able to downsize it to allow it to fit under a Ramchip?
I've made a photo of my boards:
http://8bit.yarek.pl/upgrade/ts.memory/68lr-v003b.jpg
And here's little description of the project:
http://8bit.yarek.pl/topic/t-98.html
Thanks for the scan.
Jarek Adamski
9. Re: Larken Ramdisk
pxx1_2000_32724 · Sun, 22 May 2011 18:36
Rod thanks for the help, I think that you might want to try to upload the files to the files area of this board , that would be better than attaching it to a message, also, it would be available to anyone else who may be looking for hardware info....thanks again.
neil
--- In [email], Rod H <rodh64@...> wrote:
>
>
> Hi Neil,
>
> I've attached a .pdf file of the RamDisk docs I have. I hope it helps. If more info is required then maybe we could just give Larry Kenny a phone call. He's gone on to other things long ago but when I spoke to him quite a while back I found him to be very approachable. He probably has docs to all his stuff stashed away. Old TS guys never throw anything away! Let me know if any of this helps.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Sun, 22 May 2011 13:13:32 +0000
> Subject: [ts2068] Re: Larken Ramdisk
>
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> Definitely, and thanks...yes, If you could scan the docs into something like a pdf, that would be great. I am surprised that they bent the 10th leg on the resistor pack instead of clipping it short. You say you doubled the capacity? As in now its a 500K Ramdisk? I'll take any documentation you can provide on this project and am very grateful that you replied to the cry for help. The little switching diodes, I may have some questions on, the numbers on them are soooo tiny to try to read to see if they are the correct ones...theres a drawer full of the little buggers here. Thanks for the tip on the chip sockets, I intend to take that advice. I will not be doing the soldering, I have a bud thats an electronics tech. When I am sure that I have collected all of the components, I intend to take it to him to build for me. My soldering skills have never been properly honed, even though I looked carefully at a publication I had to print years ago for Martin Marietta showing MIL standards for soldering...what was and what was not acceptable...I'll leave that to the pros....thanks again Rod I look forward to your next msg.
>
> Peace...neil
>
>
>
> --- In [email], Rod H <rodh64@> wrote:
>
> >
>
> >
>
> > 1) the components are on the "front face" of the board, male edge connector, and are pushed through and soldered on the "back" trace side.
>
> >
>
> > 2) my board's resistor pack has ten legs with one, closest to the bottom when board vertical, bent out.(no hole)
>
> >
>
> > 3) component numbers do change depending on maker. Values are all that are important. I have the build it instructions If you want. Very easy to do. If you're new at soldering heat-sensitive components such as the memory chips then may I suggest you solder in sockets and when complete just pop in the memory chips. That's what I did. I also soldered sockets to the first row of memory chips and then popped in the second row of memory thereby doubling the board's capacity. I have the instructions for this somewhere.
>
> >
>
> > To: [email]
>
> > From: pxx1_2000_32724@
>
> > Date: Sat, 21 May 2011 17:31:56 +0000
>
> > Subject: [ts2068] Larken Ramdisk
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> > Can anyone with the Larken Ramdisk please answer a couple of questions for me?
>
> >
>
> > 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the trace side. The other side is smooth without traces. Which side is the component side?
>
> >
>
> >
>
> >
>
> > 2)Concerning the resistor pack, 1K-4.7K, RP-1, there are 9 holes in the board to mount this component, does anyone have a source for this component?
>
> >
>
> >
>
> >
>
> > 3)the 32k x 8 static RAM chips I am finding that depending on the manufacturer, the number changes..
>
> >
>
> > I am not a trained tech. , becoming self-taught it seems out of necessity. This must have been one of the last projects that Eric worked on because I am finding a little drawer in the electronics components cabinet where he had gathered up many of the parts required for this project. I do have a local musician friend that is a bench tech. that I may have do the actual population of the board once I determine that all of the necessary components are here....wish me luck!
>
> >
>
10. Re: Larken Ramdisk
pxx1_2000_32724 · Mon, 23 May 2011 12:04
Hey Rod,
We never got those Docs for the Ramdisk. Thanks,
Neil
--- In [email], Rod H <rodh64@...> wrote:
>
>
> Hi Neil,
>
> I've attached a .pdf file of the RamDisk docs I have. I hope it helps. If more info is required then maybe we could just give Larry Kenny a phone call. He's gone on to other things long ago but when I spoke to him quite a while back I found him to be very approachable. He probably has docs to all his stuff stashed away. Old TS guys never throw anything away! Let me know if any of this helps.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Sun, 22 May 2011 13:13:32 +0000
> Subject: [ts2068] Re: Larken Ramdisk
>
>
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>
> Definitely, and thanks...yes, If you could scan the docs into something like a pdf, that would be great. I am surprised that they bent the 10th leg on the resistor pack instead of clipping it short. You say you doubled the capacity? As in now its a 500K Ramdisk? I'll take any documentation you can provide on this project and am very grateful that you replied to the cry for help. The little switching diodes, I may have some questions on, the numbers on them are soooo tiny to try to read to see if they are the correct ones...theres a drawer full of the little buggers here. Thanks for the tip on the chip sockets, I intend to take that advice. I will not be doing the soldering, I have a bud thats an electronics tech. When I am sure that I have collected all of the components, I intend to take it to him to build for me. My soldering skills have never been properly honed, even though I looked carefully at a publication I had to print years ago for Martin Marietta showing MIL standards for soldering...what was and what was not acceptable...I'll leave that to the pros....thanks again Rod I look forward to your next msg.
>
> Peace...neil
>
>
>
> --- In [email], Rod H <rodh64@> wrote:
>
> >
>
> >
>
> > 1) the components are on the "front face" of the board, male edge connector, and are pushed through and soldered on the "back" trace side.
>
> >
>
> > 2) my board's resistor pack has ten legs with one, closest to the bottom when board vertical, bent out.(no hole)
>
> >
>
> > 3) component numbers do change depending on maker. Values are all that are important. I have the build it instructions If you want. Very easy to do. If you're new at soldering heat-sensitive components such as the memory chips then may I suggest you solder in sockets and when complete just pop in the memory chips. That's what I did. I also soldered sockets to the first row of memory chips and then popped in the second row of memory thereby doubling the board's capacity. I have the instructions for this somewhere.
>
> >
>
> > To: [email]
>
> > From: pxx1_2000_32724@
>
> > Date: Sat, 21 May 2011 17:31:56 +0000
>
> > Subject: [ts2068] Larken Ramdisk
>
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> > Can anyone with the Larken Ramdisk please answer a couple of questions for me?
>
> >
>
> > 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the trace side. The other side is smooth without traces. Which side is the component side?
>
> >
>
> >
>
> >
>
> > 2)Concerning the resistor pack, 1K-4.7K, RP-1, there are 9 holes in the board to mount this component, does anyone have a source for this component?
>
> >
>
> >
>
> >
>
> > 3)the 32k x 8 static RAM chips I am finding that depending on the manufacturer, the number changes..
>
> >
>
> > I am not a trained tech. , becoming self-taught it seems out of necessity. This must have been one of the last projects that Eric worked on because I am finding a little drawer in the electronics components cabinet where he had gathered up many of the parts required for this project. I do have a local musician friend that is a bench tech. that I may have do the actual population of the board once I determine that all of the necessary components are here....wish me luck!
>
> >
>
11. RE: [ts2068] Re: Larken Ramdisk
Rod H · Tue, 24 May 2011 09:24
Hi Neil,
I attached the .pdf to my email. I sent myself a bcc and it came thru OK so you should also have it. It's attached at the bottom of that posting. Let me know if you need it sent again.
To: [email]
From: [email]
Date: Mon, 23 May 2011 12:04:02 +0000
Subject: [ts2068] Re: Larken Ramdisk
Hey Rod,
We never got those Docs for the Ramdisk. Thanks,
Neil
--- In [email], Rod H <rodh64@...> wrote:
>
>
> Hi Neil,
>
> I've attached a .pdf file of the RamDisk docs I have. I hope it helps. If more info is required then maybe we could just give Larry Kenny a phone call. He's gone on to other things long ago but when I spoke to him quite a while back I found him to be very approachable. He probably has docs to all his stuff stashed away. Old TS guys never throw anything away! Let me know if any of this helps.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Sun, 22 May 2011 13:13:32 +0000
> Subject: [ts2068] Re: Larken Ramdisk
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Definitely, and thanks...yes, If you could scan the docs into something like a pdf, that would be great. I am surprised that they bent the 10th leg on the resistor pack instead of clipping it short. You say you doubled the capacity? As in now its a 500K Ramdisk? I'll take any documentation you can provide on this project and am very grateful that you replied to the cry for help. The little switching diodes, I may have some questions on, the numbers on them are soooo tiny to try to read to see if they are the correct ones...theres a drawer full of the little buggers here. Thanks for the tip on the chip sockets, I intend to take that advice. I will not be doing the soldering, I have a bud thats an electronics tech. When I am sure that I have collected all of the components, I intend to take it to him to build for me. My soldering skills have never been properly honed, even though I looked carefully at a publication I had to print years ago for Martin Marietta showing MIL standards for soldering...what was and what was not acceptable...I'll leave that to the pros....thanks again Rod I look forward to your next msg.
>
> Peace...neil
>
>
>
> --- In [email], Rod H <rodh64@> wrote:
>
> >
>
> >
>
> > 1) the components are on the "front face" of the board, male edge connector, and are pushed through and soldered on the "back" trace side.
>
> >
>
> > 2) my board's resistor pack has ten legs with one, closest to the bottom when board vertical, bent out.(no hole)
>
> >
>
> > 3) component numbers do change depending on maker. Values are all that are important. I have the build it instructions If you want. Very easy to do. If you're new at soldering heat-sensitive components such as the memory chips then may I suggest you solder in sockets and when complete just pop in the memory chips. That's what I did. I also soldered sockets to the first row of memory chips and then popped in the second row of memory thereby doubling the board's capacity. I have the instructions for this somewhere.
>
> >
>
> > To: [email]
>
> > From: pxx1_2000_32724@
>
> > Date: Sat, 21 May 2011 17:31:56 +0000
>
> > Subject: [ts2068] Larken Ramdisk
>
> >
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> > Can anyone with the Larken Ramdisk please answer a couple of questions for me?
>
> >
>
> > 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the trace side. The other side is smooth without traces. Which side is the component side?
>
> >
>
> >
>
> >
>
> > 2)Concerning the resistor pack, 1K-4.7K, RP-1, there are 9 holes in the board to mount this component, does anyone have a source for this component?
>
> >
>
> >
>
> >
>
> > 3)the 32k x 8 static RAM chips I am finding that depending on the manufacturer, the number changes..
>
> >
>
> > I am not a trained tech. , becoming self-taught it seems out of necessity. This must have been one of the last projects that Eric worked on because I am finding a little drawer in the electronics components cabinet where he had gathered up many of the parts required for this project. I do have a local musician friend that is a bench tech. that I may have do the actual population of the board once I determine that all of the necessary components are here....wish me luck!
>
> >
>
12. Re: Larken Ramdisk
pxx1_2000_32724 · Wed, 25 May 2011 04:12
got it...thanks rod..
--- In [email], Rod H <rodh64@...> wrote:
>
>
> Hi Neil,
>
> I've attached a .pdf file of the RamDisk docs I have. I hope it helps. If more info is required then maybe we could just give Larry Kenny a phone call. He's gone on to other things long ago but when I spoke to him quite a while back I found him to be very approachable. He probably has docs to all his stuff stashed away. Old TS guys never throw anything away! Let me know if any of this helps.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Sun, 22 May 2011 13:13:32 +0000
> Subject: [ts2068] Re: Larken Ramdisk
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Definitely, and thanks...yes, If you could scan the docs into something like a pdf, that would be great. I am surprised that they bent the 10th leg on the resistor pack instead of clipping it short. You say you doubled the capacity? As in now its a 500K Ramdisk? I'll take any documentation you can provide on this project and am very grateful that you replied to the cry for help. The little switching diodes, I may have some questions on, the numbers on them are soooo tiny to try to read to see if they are the correct ones...theres a drawer full of the little buggers here. Thanks for the tip on the chip sockets, I intend to take that advice. I will not be doing the soldering, I have a bud thats an electronics tech. When I am sure that I have collected all of the components, I intend to take it to him to build for me. My soldering skills have never been properly honed, even though I looked carefully at a publication I had to print years ago for Martin Marietta showing MIL standards for soldering...what was and what was not acceptable...I'll leave that to the pros....thanks again Rod I look forward to your next msg.
>
> Peace...neil
>
>
>
> --- In [email], Rod H <rodh64@> wrote:
>
> >
>
> >
>
> > 1) the components are on the "front face" of the board, male edge connector, and are pushed through and soldered on the "back" trace side.
>
> >
>
> > 2) my board's resistor pack has ten legs with one, closest to the bottom when board vertical, bent out.(no hole)
>
> >
>
> > 3) component numbers do change depending on maker. Values are all that are important. I have the build it instructions If you want. Very easy to do. If you're new at soldering heat-sensitive components such as the memory chips then may I suggest you solder in sockets and when complete just pop in the memory chips. That's what I did. I also soldered sockets to the first row of memory chips and then popped in the second row of memory thereby doubling the board's capacity. I have the instructions for this somewhere.
>
> >
>
> > To: [email]
>
> > From: pxx1_2000_32724@
>
> > Date: Sat, 21 May 2011 17:31:56 +0000
>
> > Subject: [ts2068] Larken Ramdisk
>
> >
>
> >
>
> >
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> >
>
> >
>
> >
>
> >
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> >
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> >
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> >
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> >
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> >
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> >
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> >
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> >
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> >
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> >
>
> >
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> >
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> >
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> >
>
> >
>
> >
>
> >
>
> > Can anyone with the Larken Ramdisk please answer a couple of questions for me?
>
> >
>
> > 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the trace side. The other side is smooth without traces. Which side is the component side?
>
> >
>
> >
>
> >
>
> > 2)Concerning the resistor pack, 1K-4.7K, RP-1, there are 9 holes in the board to mount this component, does anyone have a source for this component?
>
> >
>
> >
>
> >
>
> > 3)the 32k x 8 static RAM chips I am finding that depending on the manufacturer, the number changes..
>
> >
>
> > I am not a trained tech. , becoming self-taught it seems out of necessity. This must have been one of the last projects that Eric worked on because I am finding a little drawer in the electronics components cabinet where he had gathered up many of the parts required for this project. I do have a local musician friend that is a bench tech. that I may have do the actual population of the board once I determine that all of the necessary components are here....wish me luck!
>
> >
>
13. Re: Larken Ramdisk
pxx1_2000_32724 · Thu, 26 May 2011 12:54
HI Jarek,
I spoke with Larry Kenny and he said there are some issues with that RAMDISK board involving traces that need to be checked or modified. As soon as I get info on what the exact issues are, I would be careful with it. thanks,
neil
--- In [email], <8bit@...> wrote:
>
> On Sat, 21 May 2011 17:31:56 -0000, "pxx1_2000_32724" wrote:
> > 1) The bare board I have has 1/4 MEG RAM-DISK, 1062,5-8 printed on the
> > trace side. The other side is smooth without traces. Which side is the
> > component side?
> Can you make a scan of the board, please?
>
> I've made a small replacement of Larken Ramdisk, it fits under the
> 512kB memory chip. I need to test it some day...
>
>
> > 3)the 32k x 8 static RAM chips I am finding that depending on the
> > manufacturer, the number changes..
> Usually 62256 (e.g. HY62256ALP-10), the outer character doesn't
> really matter.
>
>
> Jarek Adamski
>
14. Re: Larken Ramdisk
pxx1_2000_32724 · Fri, 27 May 2011 12:41
Hey Rod,
Did you obtain your Larken Ramdisk as an assembled unit? or did you have to assemble it yourself? If so, what caveats do you have concerning bad traces on that board?
Thanks in advance,
Neil
15. RE: [ts2068] Re: Larken Ramdisk
Rod H · Fri, 27 May 2011 10:18
Hi Neil,
If memory serves, I assembled the board, and one for a friend, without any issues arising. Looking at the board now, I can see that one trace needed a bit of help but on the whole it is a nice clean well-made pcb. There are nine jumpers that have to be installed but that is just a reality of single-layer boards. And one diode on the trace side. It really was a fun project and not very difficult to do.
To: [email]
From: [email]
Date: Fri, 27 May 2011 12:41:47 +0000
Subject: [ts2068] Re: Larken Ramdisk
Hey Rod,
Did you obtain your Larken Ramdisk as an assembled unit? or did you have to assemble it yourself? If so, what caveats do you have concerning bad traces on that board?
Thanks in advance,
Neil
16. RE: [ts2068] Re: Larken Ramdisk
Rod H · Fri, 27 May 2011 12:03
Hi Neil,
I'm not a techno whiz, I just follow instructions, but from my experience I think the first two numbers denote the chip speed. For the purpose of this board I think the only consideration for a static RAM chip with "256" as the last 3 numbers is price as the speed requirement is not an issue.
To: [email]
From: [email]
Date: Fri, 27 May 2011 18:28:17 +0000
Subject: [ts2068] Re: Larken Ramdisk
Thanks Rod for the prompt reply. I have found all of the diodes and sockets for the chips and the resistor pack and the micro switch, and the two edge connectors 1male-1female,the 74-Ls chips. I still need to locate the capacitors. I have a question about the RAM chips. The schematic calls for 62256 32k x 8 static RAM. Will the 43256c-12 substitute for this chip? I have these already. Thanks in advance.
17. Re: Larken Ramdisk
pxx1_2000_32724 · Fri, 27 May 2011 18:28
Thanks Rod for the prompt reply. I have found all of the diodes and sockets for the chips and the resistor pack and the micro switch, and the two edge connectors 1male-1female,the 74-Ls chips. I still need to locate the capacitors. I have a question about the RAM chips. The schematic calls for 62256 32k x 8 static RAM. Will the 43256c-12 substitute for this chip? I have these already. Thanks in advance.
18. Re: [ts2068] Re: Larken Ramdisk
8bit · Sat, 28 May 2011 11:41
On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
> The schematic calls for 62256 32k x 8 static RAM. Will
> the 43256c-12 substitute for this chip? I have these already.
It looks like they are compatibile.
Do you use sockets for RAM or are you going to solder them?
Jarek Adamski
19. Re: Larken Ramdisk
pxx1_2000_32724 · Fri, 03 Jun 2011 12:21
We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
--- In [email], <8bit@...> wrote:
>
> On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
> > The schematic calls for 62256 32k x 8 static RAM. Will
> > the 43256c-12 substitute for this chip? I have these already.
> It looks like they are compatibile.
>
> Do you use sockets for RAM or are you going to solder them?
>
>
> Jarek Adamski
>
20. RE: [ts2068] Re: Larken Ramdisk
Rod H · Fri, 3 Jun 2011 09:48:
The LarKen DD interface sees the RamDisk as just another drive. The RamDisk is addressed as a DD would be using the same commands. The RamDisk is drive #4. The docs I previously sent in .pdf form detail this on page two.
To: [email]
From: [email]
Date: Fri, 3 Jun 2011 12:21:53 +0000
Subject: [ts2068] Re: Larken Ramdisk
We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
--- In [email], <8bit@...> wrote:
>
> On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
> > The schematic calls for 62256 32k x 8 static RAM. Will
> > the 43256c-12 substitute for this chip? I have these already.
> It looks like they are compatibile.
>
> Do you use sockets for RAM or are you going to solder them?
>
>
> Jarek Adamski
>
21. Re: Larken Ramdisk
pxx1_2000_32724 · Sat, 04 Jun 2011 11:47
Thanks Rod,
I'll check that page and read it carefully.
--- In [email], Rod H <rodh64@...> wrote:
>
>
> The LarKen DD interface sees the RamDisk as just another drive. The RamDisk is addressed as a DD would be using the same commands. The RamDisk is drive #4. The docs I previously sent in .pdf form detail this on page two.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Fri, 3 Jun 2011 12:21:53 +0000
> Subject: [ts2068] Re: Larken Ramdisk
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
>
>
>
> --- In [email], <8bit@> wrote:
>
> >
>
> > On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
>
> > > The schematic calls for 62256 32k x 8 static RAM. Will
>
> > > the 43256c-12 substitute for this chip? I have these already.
>
> > It looks like they are compatibile.
>
> >
>
> > Do you use sockets for RAM or are you going to solder them?
>
> >
>
> >
>
> > Jarek Adamski
>
> >
>
22. RE: [ts2068] Re: Larken Ramdisk
Rod H · Sat, 4 Jun 2011 09:56:
I have assumed that the LKdos cartridge you have is a later version that contains the support code for the RamDisk. If your cartridge is an earlier version, prior to Larry coming out with the RamDisk, it won't recognize the RamDisk. I have both version L3, which I know contains the RamDisk support code, and R3. I'm not sure of the difference and will have to research my documentation if need be.
To: [email]
From: [email]
Date: Sat, 4 Jun 2011 11:47:33 +0000
Subject: [ts2068] Re: Larken Ramdisk
Thanks Rod,
I'll check that page and read it carefully.
--- In [email], Rod H <rodh64@...> wrote:
>
>
> The LarKen DD interface sees the RamDisk as just another drive. The RamDisk is addressed as a DD would be using the same commands. The RamDisk is drive #4. The docs I previously sent in .pdf form detail this on page two.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Fri, 3 Jun 2011 12:21:53 +0000
> Subject: [ts2068] Re: Larken Ramdisk
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
>
>
>
> --- In [email], <8bit@> wrote:
>
> >
>
> > On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
>
> > > The schematic calls for 62256 32k x 8 static RAM. Will
>
> > > the 43256c-12 substitute for this chip? I have these already.
>
> > It looks like they are compatibile.
>
> >
>
> > Do you use sockets for RAM or are you going to solder them?
>
> >
>
> >
>
> > Jarek Adamski
>
> >
>
23. Re: Larken Ramdisk
pxx1_2000_32724 · Sat, 04 Jun 2011 19:56
ThanksRod, I'll check that. I think it is the L3, but not exactly sure. Ishould have the completed board mid week. I am honing my soldering skills on a 1/4 in phono cable at the moment so I can hook up all my music gear for an important audition next week for a national act.wish me luck...peace neil
--- In [email], Rod H <rodh64@...> wrote:
>
>
> I have assumed that the LKdos cartridge you have is a later version that contains the support code for the RamDisk. If your cartridge is an earlier version, prior to Larry coming out with the RamDisk, it won't recognize the RamDisk. I have both version L3, which I know contains the RamDisk support code, and R3. I'm not sure of the difference and will have to research my documentation if need be.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Sat, 4 Jun 2011 11:47:33 +0000
> Subject: [ts2068] Re: Larken Ramdisk
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Thanks Rod,
>
> I'll check that page and read it carefully.
>
>
>
> --- In [email], Rod H <rodh64@> wrote:
>
> >
>
> >
>
> > The LarKen DD interface sees the RamDisk as just another drive. The RamDisk is addressed as a DD would be using the same commands. The RamDisk is drive #4. The docs I previously sent in .pdf form detail this on page two.
>
> >
>
> > To: [email]
>
> > From: pxx1_2000_32724@
>
> > Date: Fri, 3 Jun 2011 12:21:53 +0000
>
> > Subject: [ts2068] Re: Larken Ramdisk
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
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> >
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> >
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> >
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> >
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> >
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> >
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> >
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> >
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> >
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> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> >
>
> > We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
>
> >
>
> >
>
> >
>
> > --- In [email], <8bit@> wrote:
>
> >
>
> > >
>
> >
>
> > > On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
>
> >
>
> > > > The schematic calls for 62256 32k x 8 static RAM. Will
>
> >
>
> > > > the 43256c-12 substitute for this chip? I have these already.
>
> >
>
> > > It looks like they are compatibile.
>
> >
>
> > >
>
> >
>
> > > Do you use sockets for RAM or are you going to solder them?
>
> >
>
> > >
>
> >
>
> > >
>
> >
>
> > > Jarek Adamski
>
> >
>
> > >
>
> >
>
24. Re: [ts2068] Re: Larken Ramdisk
Jack Boatwright · Sun, 5 Jun 2011 09:47:
And, since the Larken i/f can handle up to 4 floppy drives, adding a RamDisk essentially can give the user access to 5 drives. Put your menu on the Ram Disk with an autostart command and you are in business upon power up...
Neil - did you get the email I sent with the Larken docs attached?
Jack
----- Original Message -----
From: pxx1_2000_32724
To: [email]
Sent: Saturday, June 04, 2011 4:47 AM
Subject: [ts2068] Re: Larken Ramdisk
Thanks Rod,
I'll check that page and read it carefully.
--- In [email], Rod H <rodh64@...> wrote:
>
>
> The LarKen DD interface sees the RamDisk as just another drive. The RamDisk is addressed as a DD would be using the same commands. The RamDisk is drive #4. The docs I previously sent in .pdf form detail this on page two.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Fri, 3 Jun 2011 12:21:53 +0000
> Subject: [ts2068] Re: Larken Ramdisk
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
>
>
>
> --- In [email], <8bit@> wrote:
>
> >
>
> > On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
>
> > > The schematic calls for 62256 32k x 8 static RAM. Will
>
> > > the 43256c-12 substitute for this chip? I have these already.
>
> > It looks like they are compatibile.
>
> >
>
> > Do you use sockets for RAM or are you going to solder them?
>
> >
>
> >
>
> > Jarek Adamski
>
> >
>
25. Re: [ts2068] Re: Larken Ramdisk
Jack Boatwright · Sun, 5 Jun 2011 09:51:
The "R3" Larken cartridge was for use with the "Ramex/Millenia K" disk interface.
L3 = Larken interface
O3 - Oliger
A3 = Aerco
R3 = Ramex
Jack
----- Original Message -----
From: Rod H
To: [email]
Sent: Saturday, June 04, 2011 9:56 AM
Subject: RE: [ts2068] Re: Larken Ramdisk
I have assumed that the LKdos cartridge you have is a later version that contains the support code for the RamDisk. If your cartridge is an earlier version, prior to Larry coming out with the RamDisk, it won't recognize the RamDisk. I have both version L3, which I know contains the RamDisk support code, and R3. I'm not sure of the difference and will have to research my documentation if need be.
------------------------------------------------------------------------------
To: [email]
From: [email]
Date: Sat, 4 Jun 2011 11:47:33 +0000
Subject: [ts2068] Re: Larken Ramdisk
Thanks Rod,
I'll check that page and read it carefully.
--- In [email], Rod H <rodh64@...> wrote:
>
>
> The LarKen DD interface sees the RamDisk as just another drive. The RamDisk is addressed as a DD would be using the same commands. The RamDisk is drive #4. The docs I previously sent in .pdf form detail this on page two.
>
> To: [email]
> From: pxx1_2000_32724@...
> Date: Fri, 3 Jun 2011 12:21:53 +0000
> Subject: [ts2068] Re: Larken Ramdisk
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
>
>
>
> --- In [email], <8bit@> wrote:
>
> >
>
> > On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
>
> > > The schematic calls for 62256 32k x 8 static RAM. Will
>
> > > the 43256c-12 substitute for this chip? I have these already.
>
> > It looks like they are compatibile.
>
> >
>
> > Do you use sockets for RAM or are you going to solder them?
>
> >
>
> >
>
> > Jarek Adamski
>
> >
>
26. Re: Larken Ramdisk
pxx1_2000_32724 · Mon, 06 Jun 2011 13:47
Hey Jack,
No, I didn't get an email from you, but, I think the files that Rod sent me here on the forum should work unless there are more. Scroll back through the message base and take a look at what Rod sent and let me know if there are additional docs that I may need please. I never got an answer on the bare cartridge board that has your name etched on it either. What is that board for? Do you happen know of a project that Eric had going on that was in the same box as a dissassembled Zebra Disk controller ? He mounted it in a well made small wooden box and it has what I guess to be an NMI button and an additional switch on it. Could this be a twistr board? Let me know and I will post a picture of them, there are two. Thanks in advance, great to hear from you.
neil
--- In [email], "Jack Boatwright" <jboatno4@...> wrote:
>
> And, since the Larken i/f can handle up to 4 floppy drives, adding a RamDisk essentially can give the user access to 5 drives. Put your menu on the Ram Disk with an autostart command and you are in business upon power up...
>
> Neil - did you get the email I sent with the Larken docs attached?
>
> Jack
>
> ----- Original Message -----
> From: pxx1_2000_32724
> To: [email]
> Sent: Saturday, June 04, 2011 4:47 AM
> Subject: [ts2068] Re: Larken Ramdisk
>
>
>
> Thanks Rod,
> I'll check that page and read it carefully.
>
> --- In [email], Rod H <rodh64@> wrote:
> >
> >
> > The LarKen DD interface sees the RamDisk as just another drive. The RamDisk is addressed as a DD would be using the same commands. The RamDisk is drive #4. The docs I previously sent in .pdf form detail this on page two.
> >
> > To: [email]
> > From: pxx1_2000_32724@
> > Date: Fri, 3 Jun 2011 12:21:53 +0000
> > Subject: [ts2068] Re: Larken Ramdisk
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
> >
> >
> >
> > --- In [email], <8bit@> wrote:
> >
> > >
> >
> > > On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
> >
> > > > The schematic calls for 62256 32k x 8 static RAM. Will
> >
> > > > the 43256c-12 substitute for this chip? I have these already.
> >
> > > It looks like they are compatibile.
> >
> > >
> >
> > > Do you use sockets for RAM or are you going to solder them?
> >
> > >
> >
> > >
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> > > Jarek Adamski
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27. Re: Larken Ramdisk
pxx1_2000_32724 · Wed, 03 Oct 2012 15:01
Definitely the L-3 dos. I found the startup procedure for the Ramdisk concerning formatting. My tech tells me the edge connector is all soldered up and ready to go. Should be testing it out soon.
thanks Rod.
--- In [email], "pxx1_2000_32724" <pxx1_2000_32724@...> wrote:
>
> ThanksRod, I'll check that. I think it is the L3, but not exactly sure. Ishould have the completed board mid week. I am honing my soldering skills on a 1/4 in phono cable at the moment so I can hook up all my music gear for an important audition next week for a national act.wish me luck...peace neil
>
> --- In [email], Rod H <rodh64@> wrote:
> >
> >
> > I have assumed that the LKdos cartridge you have is a later version that contains the support code for the RamDisk. If your cartridge is an earlier version, prior to Larry coming out with the RamDisk, it won't recognize the RamDisk. I have both version L3, which I know contains the RamDisk support code, and R3. I'm not sure of the difference and will have to research my documentation if need be.
> >
> > To: [email]
> > From: pxx1_2000_32724@
> > Date: Sat, 4 Jun 2011 11:47:33 +0000
> > Subject: [ts2068] Re: Larken Ramdisk
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> > Thanks Rod,
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> > I'll check that page and read it carefully.
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> >
> > --- In [email], Rod H <rodh64@> wrote:
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> > >
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> > > The LarKen DD interface sees the RamDisk as just another drive. The RamDisk is addressed as a DD would be using the same commands. The RamDisk is drive #4. The docs I previously sent in .pdf form detail this on page two.
> >
> > >
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> > > To: [email]
> >
> > > From: pxx1_2000_32724@
> >
> > > Date: Fri, 3 Jun 2011 12:21:53 +0000
> >
> > > Subject: [ts2068] Re: Larken Ramdisk
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> > > We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
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> > > --- In [email], <8bit@> wrote:
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> > > > On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
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> > > > > The schematic calls for 62256 32k x 8 static RAM. Will
> >
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> > > > > the 43256c-12 substitute for this chip? I have these already.
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> > > > It looks like they are compatibile.
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> > > > Do you use sockets for RAM or are you going to solder them?
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> > > > Jarek Adamski
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28. Re: [ts2068] Re: Larken Ramdisk
Jack Boatwright · Tue, 9 Oct 2012 21:22:
Larken DOS cartridges:
a.. L3 - for Larken Interface
b.. R3 - for Ramex Interface
c.. O3 - for Oliger Interface
d.. A3 - for Aerco Interface
These are the latest versions (designated by "3")
----- Original Message -----
From: pxx1_2000_32724
To: [email]
Sent: Wednesday, October 03, 2012 8:01 AM
Subject: [ts2068] Re: Larken Ramdisk
Definitely the L-3 dos. I found the startup procedure for the Ramdisk concerning formatting. My tech tells me the edge connector is all soldered up and ready to go. Should be testing it out soon.
thanks Rod.
--- In [email], "pxx1_2000_32724" <pxx1_2000_32724@...> wrote:
>
> ThanksRod, I'll check that. I think it is the L3, but not exactly sure. Ishould have the completed board mid week. I am honing my soldering skills on a 1/4 in phono cable at the moment so I can hook up all my music gear for an important audition next week for a national act.wish me luck...peace neil
>
> --- In [email], Rod H <rodh64@> wrote:
> >
> >
> > I have assumed that the LKdos cartridge you have is a later version that contains the support code for the RamDisk. If your cartridge is an earlier version, prior to Larry coming out with the RamDisk, it won't recognize the RamDisk. I have both version L3, which I know contains the RamDisk support code, and R3. I'm not sure of the difference and will have to research my documentation if need be.
> >
> > To: [email]
> > From: pxx1_2000_32724@
> > Date: Sat, 4 Jun 2011 11:47:33 +0000
> > Subject: [ts2068] Re: Larken Ramdisk
> >
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> > Thanks Rod,
> >
> > I'll check that page and read it carefully.
> >
> >
> >
> > --- In [email], Rod H <rodh64@> wrote:
> >
> > >
> >
> > >
> >
> > > The LarKen DD interface sees the RamDisk as just another drive. The RamDisk is addressed as a DD would be using the same commands. The RamDisk is drive #4. The docs I previously sent in .pdf form detail this on page two.
> >
> > >
> >
> > > To: [email]
> >
> > > From: pxx1_2000_32724@
> >
> > > Date: Fri, 3 Jun 2011 12:21:53 +0000
> >
> > > Subject: [ts2068] Re: Larken Ramdisk
> >
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> > > We're using sockets for sure. I should have the RamDisk today or tomorrow to test out. Not too sure how to go about that since I have NO DOCUMENTATION ON HOW to test it. Still need Oliger Xpansion board docs too. Jarek, did I understand you to say that you were working on a 512K RAM disk that would be mounted internally?
> >
> > >
> >
> > >
> >
> > >
> >
> > > --- In [email], <8bit@> wrote:
> >
> > >
> >
> > > >
> >
> > >
> >
> > > > On Fri, 27 May 2011 18:28:17 -0000, "pxx1_2000_32724" wrote:
> >
> > >
> >
> > > > > The schematic calls for 62256 32k x 8 static RAM. Will
> >
> > >
> >
> > > > > the 43256c-12 substitute for this chip? I have these already.
> >
> > >
> >
> > > > It looks like they are compatibile.
> >
> > >
> >
> > > >
> >
> > >
> >
> > > > Do you use sockets for RAM or are you going to solder them?
> >
> > >
> >
> > > >
> >
> > >
> >
> > > >
> >
> > >
> >
> > > > Jarek Adamski
> >
> > >
> >
> > > >
> >
> > >
> >
>
Indexed under
Disk & floppy systems (Larken, AERCO, Oliger) · RAM expansion & RAMdisk