I’ve got some micro cassettes with programs for P2000 and the Microtrainer (SDK-85).
Lets try to get this into executable code again.
(I sold my Philips P2000 last year before I found these tapes)
I bought a Cassette player (voice memo recorder) from Marktplaats (dutch ebay), and a mini jack cable (2.5mm to 3.5mm)
There are two things i’m going to try.
Converting the recorded audio into executable code using python or Puredata.
And making a print to connect the tape player to the SDK-85.
Connecting the player to a soundcard gave me:
Signed 16bit 44.1 kHz
(there are simular projects like this for C64 tapes and alike)
So there will be FFT tricks involved.
While browsing though this book:
I found this schematic: (page A1-39)
So that’s next to build