I pulled both bridges and checked them against a new, never used bridge: the one on the V+ side had a short: ~ to -.
Replacing it solved the problem! Thank you so much for your patience and knowledge!
Replacing it solved the problem! Thank you so much for your patience and knowledge!
Look back at the picture in your first post. To me it looks like the 2 long white it looks to me that they make a dead short between the + and - caps right after the 2 banks of .47 ohm resistors. What about disconnecting those resistors for a moment and see if you get the right voltage on that first half of the power supply .
woody - there is no shortie , look again ........
now , after repeated look , I'm sure that I made mistake regarding "yellow wire bridge at first pair of caps" ..... observed from side , bleeders wires are looking as shortie , but there is no one.
anyway , what I wrote about gnd rerouting , I hope it'll be more clear from this pic :
now , after repeated look , I'm sure that I made mistake regarding "yellow wire bridge at first pair of caps" ..... observed from side , bleeders wires are looking as shortie , but there is no one.
anyway , what I wrote about gnd rerouting , I hope it'll be more clear from this pic :
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I'm sorry guys for photo issues. Yes the yellow "wires" are actually insulated leads for the 2.2K resistors specified in the schematic.
I wanted you to know Zen that I do take to heart your warning about NTCs hanging out in space. There is not spot to tie them down to a surface, I am out of space! I'll demonstrate when the amp is done. I was quite careful to insulate them everywhere.
Then there is the central grounding point - it is actaully just a bit "up" from the drawn point and does contain the NTC. That IS a naked joint right now but I'll not allow that later in the build. I need to make a cover for the whole cap bank.
Thank you again for your help. I am now happy, not crazy and a bit wiser for all your input! 😉
I wanted you to know Zen that I do take to heart your warning about NTCs hanging out in space. There is not spot to tie them down to a surface, I am out of space! I'll demonstrate when the amp is done. I was quite careful to insulate them everywhere.
Then there is the central grounding point - it is actaully just a bit "up" from the drawn point and does contain the NTC. That IS a naked joint right now but I'll not allow that later in the build. I need to make a cover for the whole cap bank.
Thank you again for your help. I am now happy, not crazy and a bit wiser for all your input! 😉
With Antek, it is indeed blue-green, blue-green. But they are not interchangeable, must check continuity to see which blue goes with which green.
Russellc
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