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GE 401 Tube sub question
Radioroslyn
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Posts: 7,286
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Joined: Dec 2009
City: Roslyn Pa
#6

08-21-2022, 08:07 PM
If you don't have a resistor to replace act as the heater in the circuit you can try connecting a 1N4007 across pins 3 and 4. This will give you the 35v drop by clipping off the negative cycle of the ac voltage.

The other 1N4007 wiring (hv rectifier) stays the same.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry
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Messages In This Thread
GE 401 Tube sub question - by Paul Philco322 - 08-21-2022, 01:05 PM
RE: GE 401 Tube sub question - by RodB - 08-21-2022, 03:43 PM
RE: GE 401 Tube sub question - by Paul Philco322 - 08-21-2022, 05:02 PM
RE: GE 401 Tube sub question - by David - 08-21-2022, 05:48 PM
RE: GE 401 Tube sub question - by MrFixr55 - 08-21-2022, 06:16 PM
RE: GE 401 Tube sub question - by Radioroslyn - 08-21-2022, 08:07 PM
RE: GE 401 Tube sub question - by Paul Philco322 - 08-21-2022, 08:57 PM
RE: GE 401 Tube sub question - by mikethedruid - 08-22-2022, 12:06 AM
RE: GE 401 Tube sub question - by Paul Philco322 - 08-22-2022, 06:28 AM
RE: GE 401 Tube sub question - by Paul Philco322 - 08-22-2022, 06:40 PM
RE: GE 401 Tube sub question - by Paul Philco322 - 08-24-2022, 01:38 PM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)