4 ms·
That 60 kHz tone could be the tape bias frequency. https://en.m.wikipedia.org/wiki/Tape_bias https://en.m.wikipedia.org/wiki/Tape_bias
by klodolph 5y ago
That 60 kHz tone could be the tape bias frequency.
https://en.m.wikipedia.org/wiki/Tape_bias https://en.m.wikipedia.org/wiki/Tape_bias
- sprash 5y agoThanks for the hint. The next thing to try would be to connect the tape head directly to the IO-Pins of a Raspberry PI and then use a simple manchester encoded signal ramping up the frequency. A Raspberry PI can push up to 1 MHz and has an internal Schmitt-Trigger which would be perfect for reading the data back.
- klodolph 5y agoYou’re going to have to deal with the nonlinearity of tape yourself, if you go this route.