Hi everyone; I found a board that could fit in my microvax II if I decided to push it in. Let me describe it: manufacturer: Recognition Concepts Inc., assy. # 100220, then in the back: 100221 fab rev A It has: -large DIP 64 pin IC by TRW, marked 1007JIC3 8451/AP -LS glue logic -7808, 7908 and 7906 regulators -couple LH0024's, four other analog chips in a section where traces are sandwiched between ground planes. The only external connector is a subminiature rf-style gold-plated connector, close to this analog section, and, most important, -two DAC0800LCN chips. I thought it might be some kind of successive approx A/D, but, why two DAC's then? cascading them to get a higher resolution would require unreliable, painful calibration... And only one channel... or maybe the analog multiplexer occupied a separate board... Has anybody seen this beast before? Carlos. -- Carlos Murillo-Sanchez email: cem14(a)cornell.edu 428 Phillips Hall, Electrical Engineering Department Cornell University, Ithaca, NY 14853