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Old 05-15-2013, 11:38 AM
Geist Geist is offline
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Join Date: Dec 2012
Posts: 350
Hi All;
Bob, sorry about the confusing statement.. When the set is on its side, I get NO high voltage.. But, put it upside down or rightside up and I get High voltage.. With the Set upside down, and my Variac set to 110 volts input, I get on the 5U4 pin 8, and C220A, Field Coil, I get 259 volts, If I up the input voltage to 120 volts, the the reading is 290 volts at pin 8 and the Schematic shows 300 volts at this point.. But, If I put the chassis on its side then the Voltage is 0.. I think it mostly is that my 5U4's along with all of the rest of the Tubes are all old..
THANK YOU Marty
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Old 05-15-2013, 11:58 AM
old_coot88 old_coot88 is offline
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Are the 5U4 filaments lit when you lose voltage?
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