RickyDean Posted September 11 Share Posted September 11 (edited) I have some devices for the TI that I got from an individual a few years ago and I am going to bring them up one by one, too see if they can be identified. I believe these came from Germany and are hand etched and built. Here is the first. Can you help me identify it? I feel this is some kind of sound card? Edited September 11 by RickyDean spelling 1 1 Quote Link to comment Share on other sites More sharing options...
Artoj Posted September 11 Share Posted September 11 (edited) 1 hour ago, RickyDean said: Can you help me identify it? It seemed like a sound card, with that plug, I can see it has 74LS251/74LS259 with connections to the correct address lines, for sure he has decoded the CRU, and the LEDs are to indicate which bit is on/off. That plug looks to be attached to a 7805 regulator, this must be the power supply plug (5v). The 74155 is the decoder for the address space, the 7485 is a comparator used with the dip switches to select the CRU block. So generally speaking it looks like a input/output CRU interface. It looks like he was testing the output using the LEDs, there is no input section yet, I'd have to trace out the circuit to see what the transistors are for. I hope this helps. Regards Arto. Edited September 11 by Artoj 2 Quote Link to comment Share on other sites More sharing options...
RickyDean Posted September 11 Author Share Posted September 11 What does the term stecker here mean? It is a German word for plug, but would this be meaning the plug we're seeing, or do you think it means a proper name, Jim Stecker. would this be a tester for the cru input/output for the console or do you think it had another use then? Anyone had any experience with this piece of equipment? Would it be a one off, or was it produced in a small batch by a User group? I haven't seen @Ksarul post in a few days, he would probably know. Quote Link to comment Share on other sites More sharing options...
+mizapf Posted September 11 Share Posted September 11 "Stecker außen ist 0V, i.... (innen?) 5V" "Plug is 0V on the outside, 5V inside" 4 Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted September 11 Share Posted September 11 1 hour ago, mizapf said: "Stecker außen ist 0V, i.... (innen?) 5V" "Plug is 0V on the outside, 5V inside" Interesting way to say "5V center positive." 1 Quote Link to comment Share on other sites More sharing options...
+mizapf Posted September 11 Share Posted September 11 Just for the etymologically interested, German "Stecker" is from the verb "stecken", related to English "stick", while English "plug" is related to German "Pflock", which is the wooden thing you hammer into the ground or into vampires. 2 4 Quote Link to comment Share on other sites More sharing options...
RickyDean Posted September 12 Author Share Posted September 12 Okay, not quite sure what the other is supposed to be, though we do have a good estimation. Next on the list is this Mechatronic style eprom programmer. Does anyone know anything about it? It is also German made. I'd like to find some documentation for it if possible. Quote Link to comment Share on other sites More sharing options...
+OLD CS1 Posted September 12 Share Posted September 12 3 hours ago, mizapf said: the wooden thing you hammer into the ground or into vampires. Get pflocked, vampires. 1 Quote Link to comment Share on other sites More sharing options...
unhuman Posted September 12 Share Posted September 12 Didn't Foundation make some crazy music / sound / midi card for the TI? Quote Link to comment Share on other sites More sharing options...
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