Gregory's Server
Here is an IC mystery
When did TI make plastic TTL with the logo
embossed into the divot?
It seems VERY unlikely they were making epoxy bodied ICs in 1965
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 Did any companies build 40 pin DIP Z80s that were functionally identical to the original but had an 8 bit ALU so there were fewer clocks/instuction? Some issues of "Silicon Valley Engineer" magazine ca. 1990  @bitsavers reminds me of this book back in the day.. a play on the "Valley Girl". https://a.co/d/j8RIGZW https://www.ebay.com/itm/126213185356 TNIX 2.1 floppies for the Tektronix 8562 development system. Please put the word out that I'm trying to find out who bought these. I have two systems, and I've been looking for them for 20 years  @bitsavers Message the seller on eBay and ask them to please give your contact information to the buyer?  @bitsavers Have you reached out to VintageTEK about the software you need? They might have it, or be able to find someone who does. I've been out there several times, they're super nice folks, and very into preserving and restoring old equipment. A techno-parrot's view of the parts in a teletype after digesting the service manual. ball bearing as bellcrank is my favorite  |
@bitsavers They look too narrow, too. I'm getting strong "soviet bloc" package vibes from these. CEMI and TESLA had those long divots. I reckon these are re-marked parts. '65 seems too early.
@bitsavers I have no relevant knowledge knowledge but I wonder if this could be from a time when prices where high and there was enough margin to pay the higher manufacturing cost. The 3D logo would flaunt the technical advances and make them harder to clone.