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Need Help Reading a Schematic
#6

Yes, the chassis should actually be at a positive voltage with respect to the center tap of the high voltage winding, and there is a resistor and an electrolytic capacitor with it's + side connected to the chassis to make it so. The principal purpose is to produce a negative bias voltage source for the output amplifier circuit. If this part is missing, bad or mis-wired, you're going to have hum for sure.


Messages In This Thread
Need Help Reading a Schematic - by Jamie - 08-17-2013, 06:25 AM
RE: Need Help Reading a Schematic - by Jamie - 08-17-2013, 10:00 PM
RE: Need Help Reading a Schematic - by morzh - 08-17-2013, 10:14 PM
RE: Need Help Reading a Schematic - by Jamie - 08-17-2013, 10:24 PM
RE: Need Help Reading a Schematic - by codefox1 - 08-18-2013, 09:57 AM
RE: Need Help Reading a Schematic - by morzh - 08-18-2013, 10:05 AM
RE: Need Help Reading a Schematic - by Jamie - 08-18-2013, 11:13 AM
RE: Need Help Reading a Schematic - by Jamie - 08-18-2013, 05:53 PM
RE: Need Help Reading a Schematic - by morzh - 08-18-2013, 07:21 PM
RE: Need Help Reading a Schematic - by Arran - 08-18-2013, 09:16 PM
RE: Need Help Reading a Schematic - by Jamie - 08-19-2013, 07:18 AM



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