Philco 91-121 sensitivity

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Philco 91-121 sensitivity

Ron Ramirez
Silent Key

Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana

10-05-2017, 03:58 PM

Hi Bob,

Most likely a bad RF coil. Check the RF amp plate to see if it has voltage. If not...you've found the culprit (the coil connected to the plate of the RF amp tube). Icon_smile

If the RF amp tube does have plate voltage, then the antenna coil is likely faulty (open winding).

The IF of the 91 is 260 kc so you're in the ballpark.

--
Ron Ramirez
Ferdinand IN

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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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