82161A Digital Cassette with Audio Tapes?

[Raymond Del Tondo]

(05-24-2015 03:46 AM)Paul Berger (Canada) Wrote:  One thing that is likely missing on the audio tapes is the holes to sense EOT and BOT, nor is it likely to have the small 45 degree mirror that reflects the light through that hole to the sensor.

I am not sure which tape you are referring to but I just compared a 82161A cartridge to a Sony MC-90 and the spacing of the holes for the spools is even different.

The HP data tapes and the audio tapes from other vendors may also have a different magnetic coercitivity, so even if they'd match physically (which I doubt), audio tapes (what tapes for dictation machines are) will be incompatible to the HP 82161A.