This board is a set of diodes used to expand the number of inputs on some of the logic boards such as the R111 ( 24K) diode gate or for use as diodes. Diodes are similar to 1N3606. This board cost $5 in 1968.
Schematic of board as a scanned PDF file.
Feel free to contact me, David Gesswein firstname.lastname@example.org with any questions, comments on the web site, or if you have related equipment, documentation, software etc. you are willing to part with. I am interested in anything PDP-8 related, computers, peripherals used with them, DEC or third party, or documentation.
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