The KIM-1 is the best known development system by MOS Technology.
But a more advanced, more expensive ($3950) system, quite rare now, is the MDT 650.
Here I present you the MOS Technology brochure, an article in the Microcomputer Digest and a userguide as published in the book Microcomputer Systems Principles featuring the 6502 KIM.
Another article from the Dutch KIM Kenner magazine: RECORDING PROGRAMS WITH THE KIM-1 AND THE CASSETTE RECORDEROrigin...
Stephen Crozier made a clone of the Unilab Three Chips main board.
Thanks to Mathias Ohlerich for the scan of the Sonderheft 2
Dave Williams, who designed and builds the MOS KIM-1 Reproductions, sent me three worthwhile documents: - Schematic - ...