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Grounding buss

Posted: Tue May 04, 2021 2:45 pm
by robgray
I recently watched episode 14, power supply and grounding buss, as well as the grounding systems video.
I'm working on an old MAAS carillon amplifier and this thing has every ground going to whatever octal socket is nearby. The 6.3v heater wires on this amp are not twisted. Filter caps are new but there is still a lot of hum.
Any suggestions?