+dhe Posted September 6, 2020 Share Posted September 6, 2020 Does anyone have a preferred vendor of TMS9901's? I'd like to put back a few for a rainy day, but it seems it's gotten increasing easy to purchase bad chips, or chips, with new silk screens - that aren't even the chip you ordered (counterfeit). Quote Link to comment Share on other sites More sharing options...
+dhe Posted September 6, 2020 Author Share Posted September 6, 2020 This is kind of neat: 1 Quote Link to comment Share on other sites More sharing options...
+helocast Posted September 6, 2020 Share Posted September 6, 2020 18 minutes ago, dhe said: Does anyone have a preferred vendor of TMS9901's? I'd like to put back a few for a rainy day, but it seems it's gotten increasing easy to purchase bad chips, or chips, with new silk screens - that aren't even the chip you ordered (counterfeit). Ebay funkward-tech https://www.ebay.com/itm/TI-TMS9901NL-TMS9901NL-40-TMS9901-Programmable-System-Interface-DIP-40-x-1pc/151076609192 has always been reputable to me. Only had one order out of probably two dozen where I was physically shorted DRAMs, but they made it up. I've had zero fakes in my dealings, but I'm about due. Doug 2 Quote Link to comment Share on other sites More sharing options...
wolhess Posted September 7, 2020 Share Posted September 7, 2020 17 hours ago, dhe said: Does anyone have a preferred vendor of TMS9901's? I'd like to put back a few for a rainy day, but it seems it's gotten increasing easy to purchase bad chips, or chips, with new silk screens - that aren't even the chip you ordered (counterfeit). I bought 9901 from chipsgate (china) some time ago. They worked. https://www.ebay.de/itm/4PCS-Programmable-system-interface-IC-TI-DIP-40-TMS9901NL-TMS9901/152770812989?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Quote Link to comment Share on other sites More sharing options...
+FarmerPotato Posted September 8, 2020 Share Posted September 8, 2020 I have a stock of 9901 from polida (eBay) but have not tested them yet. Quote Link to comment Share on other sites More sharing options...
atrax27407 Posted September 8, 2020 Share Posted September 8, 2020 Hodge16 (aka Unicorn Electronics) on eBay has them. They are a bit expensive but, over the years, I have NEVER goten a non-functional chip from them. They have a perennial 100% satisfaction rating. Quote Link to comment Share on other sites More sharing options...
CC Clarke Posted September 11, 2020 Share Posted September 11, 2020 (edited) I have spares of every chip in the board in my organizer, including a couple of what we used to call "Golden Mamas" - white ceramic-bodied 9900's and I think a 9901. Those are fairly rare 99/4A innards, and we occasionally found some in the plastic tubes used to store replacement chips on the assembly lines. All of the techs collected them and installed them in their personal computers because they looked cool. CCC Edited September 11, 2020 by CC Clarke 10 Quote Link to comment Share on other sites More sharing options...
RickyDean Posted September 11, 2020 Share Posted September 11, 2020 12 hours ago, CC Clarke said: I have spares of every chip in the board in my organizer, including a couple of what we used to call "Golden Mamas" - white ceramic-bodied 9900's and I think a 9901. Those are fairly rare 99/4A innards, and we occasionally found some in the plastic tubes used to store replacement chips on the assembly lines. All of the techs collected them and installed them in their personal computers because they looked cool. CCC I have 3 or 4 ceramic 9900's, I'll have to watch for a 9901, that would be cool. Quote Link to comment Share on other sites More sharing options...
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