Tape, cassette & loading
Cassette tape storage, loading/saving programs, load errors, audio levels and tape decks.
94 threads · 861 messages · 2002-01-30 → 2026-06-01
Tape preservation has been a steady concern of the community across both eras. Back in the Yahoo era the conversation was mostly about what to save and how to send it around: people with original Timex cassettes (e.g. the TS2050 cassette with the TS1000 Smart Terminal) would offer to record sides for others to convert, but were often blocked by lacking audio input or knowing only .p and a nascent .tzx spec that emulators barely supported. Practical advice was mundane — record mono, push the sample rate up, MP3 was good enough — but the impulse to archive was already there.
In the groups.io era a real pipeline emerged. Adam Trionfo's library-tape archiving (Ryan Gray's T/S 2068 Library Tape, the Calliope Metagraphics cassette, CATS library tapes, the Fort Worth TSUG-II tapes) set the pattern: record both sides as raw WAV, post them to archive.org, then let the tool wizards (Ryan Gray especially) convert. The toolchain the group has settled on is a chain of fallbacks — tzxtools (tzxwav, tzxplay, tzxmerge), ZX81 Tape Converter for .p/.tzx, mvindahl's frequency-based zx81-dat-tape-reader (3.2 kHz detection rather than amplitude) for marginal ZX81 tapes, leiradel's tape2wav to round-trip a .tzx that won't play, and FUSE's load-then-Save-As as the last resort when nothing else will read the audio. Jack Boatwright's 2024 garage fire turned into a major late-era preservation push when he shipped what survived to David for recovery.
A second strand is loading on real hardware. The TS2068 is famously "deaf" on its EAR jack, and the group's collective wisdom — watch border colors for the leader tone, max the source volume, use a mono cable, and sometimes drive it through a powered speaker — gets repeated to every new owner. The TS2020 cassette recorder's special sauce is its TONE control; the Radio Shack Minisette-9 and various GE Silver Signature units are the recognized clones. Blank-tape sourcing (thrift stores, estate sales, bulk erasers, Type I "normal position") got worked out around 2022.
Finally, the TS-Pico has quietly displaced tape for day-to-day use: load TAP/TZX from SD on real iron, with debugging threads like "Help me fix a file in The Crown?" showing how the community now stitches WAV → TZX → TAP and tests on emulator and Pico in parallel. Tape itself has become a source format to be rescued, not the working medium — except for the occasional reel-to-reel novelty build.
Key threads
- Those who have the cassette that came with the TS2050 (archive.org) — 2009 Yahoo-era thread — earliest concrete archive request in the dump: preserve the TS1000 Smart Terminal side of the TS2050 cassette. Shows the era's bottleneck (no audio in,
.pvs nascent.tzx) and the cross-border community pulling together. - T/S 2068 Library Tape Archiving Process (#2347 on groups.io) — Flagship modern archiving thread (64 msgs, 2022-2026). Adam's end-to-end account of capturing Ryan Gray's Fort Worth TSUG library tape — raw WAVs to archive.org, troubleshooting bad blocks with TZXTools, recovering programs like Tank that gave loading errors back in the 1980s.
- Help me fix a file in The Crown? (#5436 on groups.io) — Concrete modern debugging walkthrough: David and Ryan dissect why FUSE loads a BASIC block that nothing else will, demonstrate
tzxmerge/cat for stacking levels, and show how to make a multi-level game work from the Pico. The canonical "how the group fixes a stubborn tape" thread. - zx81 tape recovery (#2784 on groups.io) — Introduces mvindahl's frequency-based (3.2 kHz)
zx81-dat-tape-readerfor ZX81 audio that amplitude-based tools choke on. The thread also shows the group helping a non-programmer get Node.js running so he can chew through his tape pile. - New proud TS2068 owner (and unable to load a program) (#6328 on groups.io) — The canonical loading-troubleshooting playbook the group now hands new owners — Jon's incremental-volume method, Ryan's border-color reading (white → alternating → leader stripes), and the recommendation to just buy a Pico if you only need to use the machine.
- Timex/Sinclair 2020 Cassette Recorder clones (#6247 on groups.io) — Captures the community knowledge about which physical recorders work: the Minisette-9, GE Silver Signature 3-5361, and why TS2020-like TONE control matters. Also folds in Carl's first-hand history of Art Colgate's TS2068 milling-machine shop in Albuquerque.
- From Eric Johnson, by way of Jack Boatwright (#6541 on groups.io) — 2024 Jack Boatwright garage-fire event — surviving tapes, disks, Oliger hardware and prototype boards shipped to David for recovery. A landmark late-era preservation moment and the source of much of what's been archived since.
- A couple tapes for you to play around with (#2628 on groups.io) — David digitizes the CATS user-group library tapes (#8 and #9) plus PC-DRAW — exactly the kind of user-group library Adam had been asking after for years, finally crossing into the archive.
All threads (94)
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