T4 collector connects to T6 emitter, so not sure why you are showing different voltages for those pins. (T4 and T6 are BCE pinout)
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Show posts MenuQuote from: Jesse on May 15, 2024, 02:21:50 PMAny book recommendations for Electronics Repair / Troubleshooting?Lots of good suggestions in this thread: https://www.ssguitar.com/index.php?topic=439.0
Quote from: Jesse on May 07, 2024, 04:01:33 PMQ9 has fresh thermal paste and seems to be tight to the heatsink.What about it's insulator? Don't it and the output transistors that are mounted on the heatsink have mica insulators or similar?
Quote from: markorock37 on May 07, 2024, 12:59:57 AMIs it possible the new ones dont have the same pinout as the originals?Yes it is possible. Measure resistance from D4 cathode to T5. One of the T5 pins should read zero ohms to D4 cathode. Which pin is it, pin 1,2, or 3?
Quote from: saturated on May 04, 2024, 03:18:47 PMPretty funny the book noted "although Vo can be directly measured across A and B it is good practice to make all measurements with respect to ground"Does Vo mean V offset? Where measuring direct from A to B should give zero when they are balanced?
Quote from: markorock37 on May 02, 2024, 07:49:32 PMT3 pins 1,2,3=C,B,EAs far as I know, there is no such thing as CBE pinout for these. But, apparently there are 2 versions of each, and could be either EBC or ECB.
T5 pins 1,2,3=E,B,C