Talk:Compact Cassette tape types and formulations

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IEC Standards

The article makes numerous references to "IEC Standards" without giving numbers for those standards e.g. "IEC XXXX" 2A00:23C3:70A:4100:500:AFD:1C1B:AF22 (talk) 09:32, 31 August 2020 (UTC)[reply]

These are all IEC publications starting with 60094 code. The original 60094 (1962) had no provision for the cassette (it was still in prototype stage then), so we're talking about late 1970s and 1980s revisions, when the former single 60094 was split into separate parts (60094-1, 60094-2 etc.). Most relevant are the IEC 60094-1 Magnetic tape sound recording and reproducing systems. Part 1: General conditions and requirements (1981 Prague revision and later) and IEC 60094-7 Magnetic tape sound recording and reproducing systems. Part 7: Cassette for commercial tape records and domestic use (1986 revision and later). Cf. whole list at [1]. Yes, they still want 105 precious Swiss franks for each paper. Retired electrician (talk) 17:48, 3 September 2020 (UTC)[reply]

Prehistoric oddity

File:Calibration of secondary standard magnetic tape cassettes (computer amplitude reference) phase I - Sidbey B. Geller, Paul A. Mantek. (IA calibrationofsec731gell).pdf - a National Bureau of Standards 1972 tech note re. testing digital data cassettes "of the Philips type" (i.e. compact cassettes). Contains as-of-1972 standard specs, physical measurement data (coercivity, remanence, squareness...) and a curious review of data transports of the period (120 ips on a compact cassette...). FWIW, extinct origins of an extinct technology. Retired electrician (talk) 20:20, 8 September 2020 (UTC)[reply]

It's just a shame that this article is not about digital data cassettes. 86.129.19.88 (talk) 17:25, 13 June 2021 (UTC)[reply]