Mtlatc Posted January 19, 2023 Share Posted January 19, 2023 (edited) The first question is the age old debate -- Should I recap the the entire system just on general principles. Realistically, it is 40 years old. Secondly, I have been considering replacing the UA7812C with its mega heat sink (photo attached) with the TSR-1 (Data Sheet Attached). What says you folks that are way smarter than me? It looks like a good option to reduce heat and make they system for efficient. I'm just looking for opinions. I fully get the "if it's not broke, don't fix it" and the "keep it all original" mindsets....... tsr1_datasheet.pdf Edited January 19, 2023 by Mtlatc Cuz I'm Silly Quote Link to comment Share on other sites More sharing options...
+chue Posted January 19, 2023 Share Posted January 19, 2023 It's been a while, but I believe some opinions offered in this thread Quote Link to comment Share on other sites More sharing options...
Mtlatc Posted January 19, 2023 Author Share Posted January 19, 2023 3 hours ago, chue said: It's been a while, but I believe some opinions offered in this thread Thanks. For some reason my searches never produce results. 1 Quote Link to comment Share on other sites More sharing options...
Stuart Posted January 19, 2023 Share Posted January 19, 2023 But without the 7812 heatsink and its regulator, you won't get that hot vintage electronics smell. And that just won't do. 2 1 Quote Link to comment Share on other sites More sharing options...
GDMike Posted January 28, 2023 Share Posted January 28, 2023 On 1/19/2023 at 3:16 PM, Stuart said: But without the 7812 heatsink and its regulator, you won't get that hot vintage electronics smell. And that just won't do. I suggest adding the peb fan to get that smell and sound back. 1 Quote Link to comment Share on other sites More sharing options...
+FarmerPotato Posted January 28, 2023 Share Posted January 28, 2023 On 1/19/2023 at 3:16 PM, Stuart said: But without the 7812 heatsink and its regulator, you won't get that hot vintage electronics smell. And that just won't do. Oh no... My solution is to burn some solder flux. That always sets the right atmosphere. 1 Quote Link to comment Share on other sites More sharing options...
+FALCOR4 Posted January 28, 2023 Share Posted January 28, 2023 I'm kind of ambivalent now on replacing caps in my TI equipment. A couple years ago I did that in a PEB and several console P/S's then tested the caps I took out and they were within tolerances for capacitance. I'm not saying that they shouldn't have been replaced but, at that point I began to believe that TI probably used quality components in their units which shows today. (To be totally forthcoming, they generally tended toward the lower end of their tolerances so they were showing age and, I'm not able to test for breakdown voltages.) The point is, I didn't find any "bad" ones and I stopped worrying so much about it. I can't vouch for the wall warts. If you go for replacements, the real question for me then becomes, are you replacing them with capacitors of the same or higher quality? Putting low grade capacitors in as replacements may actually be a negative thing to do. I suppose if one wants to give their TI a chance for another forty years then it doesn't hurt. I certainly did that in my old Hallicrafter receiver and it is going strong today.😁 1 Quote Link to comment Share on other sites More sharing options...
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