{Collins} 30L-1 / 811A filament volts



I just installed a filament voltage dropping kit from Young Kim on a 30L-1.

With 123VAC primary voltage , I was getting over 7 volts to the filaments.

The resistor ( a length of stranded teflon wire ) brought the voltage down to 6.4 in standby, and 6.2 under load.


Don WA4NPL






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