MITS ALTAIR 8800 88-2SIO S-100 Reproduction Board For Sale

MITS ALTAIR 8800 88-2SIO S-100 Reproduction Board
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MITS ALTAIR 8800 88-2SIO S-100 Reproduction Board:

A close reproduction of the MITS 88-2SIO Rev 0 Serial I/O Board used in the ALTAIR 8800 and other S-100 computers. This board provides one or two serial ports using the 6850 ACIA. Although not an exact replica, this board is functionally equivalent to the original MITS 88-2SIO board. This board uses the same components and documentation as the original. RS-232, TTL, and Current Loop are supported.Most components on the right side of the board are only required if using Current Loop. The 88-2SIO is compatible with a vast amount of Altair software, including CP/M and Microsoft BASIC.
This sale is for a bare PC Board. All parts are available and full documentation including assembly manual is readily available on the web. Images show completed board in an ALTAIR 8800c booting CP/M 2.2.
This board was produced from scratch using KiCad 7 and an original 88-2SIO as a template. Prototypes were then made to confirm proper operation.I am happy to accept returns if you are not pleased for any reason as long as the board is unassembled. You will need to pay return shipping only.

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