S-100 Wire Wrap Prototype Board Protoboard Altair 8800 IMSAI 8080 SOL-20 S100

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Seller: glitchwrks ✉️ (3,265) 100%, Location: Buena Vista, Virginia, US, Ships to: WORLDWIDE, Item: 272557881287 S-100 Wire Wrap Prototype Board Protoboard Altair 8800 IMSAI 8080 SOL-20 S100. NOTE: the Altair 8800B is pictured to show compatibility and IS NOT included in the auction!

For sale is a BIC wire wrap prototype board that fits the S-100 bus. These boards came from a piece of scientific gear I picked up in an equipment lot at a local auction. Turns out the chassis is almost S-100! The cards are exactly the same size (one picture shows a card inserted in the card guides in my Altair 8800B), have the power supply rails in the right places, and use the right connector. The chassis they were in was a 22-slot OEM chassis with a linear supply, but there was no CPU board; instead, everything was controlled through a GPIB interface board.

These cards are very high quality FR4 boards with hard gold plated edge connectors. Interesting design -- I don't know if the card was too complex for a two-layer board or what, but they laid out a bunch of IC footprints, then staked wire wrap sockets in at each pad. Wire wrap pins are fully gold plated. Pictures provide a better explanation.

All boards have regulator + heatsink, two card ejectors, several tabs on the top edge for connectors, and a mix of 14, 16, 20, and 24 pin DIPs. The boards are as-removed, so you'll be unwrapping a bunch of connections to use them.

DIPs are mostly a mix of 74HCT random logic, with a bunch of LS7061 32 bit/dual 16 bit counters (PDF datasheet available online).

I will deduct $10 USD from the purchase price if you don't want the DIP ICs, just let me know at checkout. I also have IDC connectors that match the top card edge terminations, they're used and will have a bit of ribbon cable left in them.

  • Type: Prototype Card
  • Brand: BIC
  • Compatible Brand: For S-100
  • Country/Region of Manufacture: United States

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