Didier form aida.org was approached by his friend Erik about a malfunctioning MPS-65.
By studying the material on this page and doing measurements on the board it was decided the PROM on the board was malfunctioning.
So Didier designed a GAL replacement for the PROM and the board came back to life!
Here the story how the design looks like.
See also:
Cassette reading problems KIM-1
Another article from the Dutch KIM Kenner magazine: RECORDING PROGRAMS WITH THE KIM-1 AND THE CASSETTE RECORDEROrigin...
Another article from the Dutch KIM Kenner magazine: RECORDING PROGRAMS WITH THE KIM-1 AND THE CASSETTE RECORDEROrigin...
Unilab Three Chips clone
Stephen Crozier made a clone of the Unilab Three Chips main board.
Stephen Crozier made a clone of the Unilab Three Chips main board.
Das EMUF Sonderheft 2
Thanks to Mathias Ohlerich for the scan of the Sonderheft 2
Thanks to Mathias Ohlerich for the scan of the Sonderheft 2
MOS KIM-1 Reproduction documents added
Dave Williams, who designed and builds the MOS KIM-1 Reproductions, sent me three worthwhile documents: - Schematic - ...
Dave Williams, who designed and builds the MOS KIM-1 Reproductions, sent me three worthwhile documents: - Schematic - ...