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Philco 91-121 sensitivity
#7

Ok so what happens if you have the shield on and the ant off is the signal stronger if you touch the mixer cap or the rf amp cap??
Two other thing come to mind, maybe your 39/44 is flat and what kind of voltage do you have on pin 3 and pin 4.
Typically w/o the ant connected reception should be the loudest when touching the rf amp grid cap. A slight decrease when touching the mixer cap and should go dead (most of the time) when touching the if amp grid cap.

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


Messages In This Thread
Philco 91-121 sensitivity - by grandntl - 10-05-2017, 03:41 PM
RE: Philco 91-121 sensitivity - by Ron Ramirez - 10-05-2017, 03:58 PM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-05-2017, 05:34 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-06-2017, 08:51 AM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-06-2017, 10:19 AM
RE: Philco 91-121 sensitivity - by grandntl - 10-06-2017, 12:49 PM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-06-2017, 01:22 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-06-2017, 02:28 PM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-06-2017, 03:26 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-06-2017, 05:59 PM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-06-2017, 07:39 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-27-2017, 03:32 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-28-2017, 08:41 AM
RE: Philco 91-121 sensitivity - by grandntl - 10-29-2017, 12:29 PM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-29-2017, 01:48 PM
RE: Philco 91-121 sensitivity - by grandntl - 11-01-2017, 10:29 AM
RE: Philco 91-121 sensitivity - by Ron Ramirez - 11-01-2017, 12:48 PM
RE: Philco 91-121 sensitivity - by klondike98 - 11-01-2017, 01:42 PM
RE: Philco 91-121 sensitivity - by grandntl - 11-02-2017, 10:08 AM
RE: Philco 91-121 sensitivity - by grandntl - 11-14-2017, 02:16 PM
RE: Philco 91-121 sensitivity - by klondike98 - 11-14-2017, 02:39 PM



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