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Philco 91-121 sensitivity
11-02-2017, 09:08 AM
Thank you Ron and Bob, that local/distance switch in the 15 schematic matches what I have. Checking the tube socket data for the 15 shows 30 volts on the 44RF cathode (only one listing). Going back to the 91-121, should all of them normally have 25 volts on the 44RF cathode unless they were a factory or "aftermarket" modification?
Bob
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Messages In This Thread
Philco 91-121 sensitivity - by grandntl - 10-05-2017, 02:41 PM
RE: Philco 91-121 sensitivity - by Ron Ramirez - 10-05-2017, 02:58 PM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-05-2017, 04:34 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-06-2017, 07:51 AM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-06-2017, 09:19 AM
RE: Philco 91-121 sensitivity - by grandntl - 10-06-2017, 11:49 AM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-06-2017, 12:22 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-06-2017, 01:28 PM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-06-2017, 02:26 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-06-2017, 04:59 PM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-06-2017, 06:39 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-27-2017, 02:32 PM
RE: Philco 91-121 sensitivity - by grandntl - 10-28-2017, 07:41 AM
RE: Philco 91-121 sensitivity - by grandntl - 10-29-2017, 11:29 AM
RE: Philco 91-121 sensitivity - by Radioroslyn - 10-29-2017, 12:48 PM
RE: Philco 91-121 sensitivity - by grandntl - 11-01-2017, 09:29 AM
RE: Philco 91-121 sensitivity - by Ron Ramirez - 11-01-2017, 11:48 AM
RE: Philco 91-121 sensitivity - by klondike98 - 11-01-2017, 12:42 PM
RE: Philco 91-121 sensitivity - by grandntl - 11-02-2017, 09:08 AM
RE: Philco 91-121 sensitivity - by grandntl - 11-14-2017, 01:16 PM
RE: Philco 91-121 sensitivity - by klondike98 - 11-14-2017, 01:39 PM
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