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Author Topic: AF 67 MOD RESTING CURRENT..  (Read 1662 times)
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ve6pg
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« on: February 02, 2012, 09:22:41 AM »
..a friend needs to know what the resting current for the AF67 modulator should be..any info is helpful..

..sk..
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...Yes, my name is Tim Smith...sk..
WD8BIL
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« Reply #1 on: February 02, 2012, 01:09:03 PM »
I went thru the manual on BAMA, Tim. It doesn't give a specific mod current setting. Just the voltages around the tubes.

Plate  (pin 3)  350 - 500 VDC - see chart for appropriate series resistor
Screen (pin 4) 220VDC
Bias (pin 5) -22.5VDC
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