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Author Topic: 5U4G  (Read 4201 times)
dbrink701
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« on: April 26, 2015, 11:45:59 AM »

Schematic uses pin 7 of rectifier tube. Pin out diagrams of this tube indicate it not being used. I assume it is filament?
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dbrink701
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« Reply #1 on: April 26, 2015, 12:22:40 PM »

Make that plate. Would some one explain the resisters to two unused pins on the tube?
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grod915
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« Reply #2 on: June 12, 2015, 10:50:37 AM »

Those are diodes, not resistors. They are being used as a fail safe for the rectifier tubes. You can read about it here:
http://www.premierguitar.com/articles/the-immortal-amplifier-mod-1
P.S. Sorry to reply so late but this board has been very slow so I don't stop by very often.
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