Vintage 1977 IMSAI VIO Video Board for S-100; Altair, IMSAI, etc. For Sale

Vintage 1977 IMSAI VIO Video Board for S-100; Altair, IMSAI, etc.
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Vintage 1977 IMSAI VIO Video Board for S-100; Altair, IMSAI, etc.:
$175.00

IMSAI VIO Video Board for S-100; Altair, IMSAI, etc.You are offerding on an IMSAI VIO Video Board for the S-100 bus.

Note: This board does not contain any PROMs, so there is no firmware on tne board. I believe the PROMs also would have contained the bit patterns for the character set.

I have no way to test this board, so I cannot verify that it is still operational. It is being sold as a collectible, AS-IS.

Features:
  • 2K RAM for storing the display refresh (sixteen 2102 chips)
  • 2K for software in ROM (the ROMs are missing from this board)
  • Up to 24x80 characters/screen
  • Output via Composite video
  • Display memory at 0F000H
  • ROM software at 0F700H


The manual for this board can be found here.

Payment & Shipping:Payment by PayPal only.

I ship internationally via \'s Global Shipping Program.
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Documentation