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Grundig 5399/u/s
RodB
Phorum Expert
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Posts: 1,004
Threads: 40
Joined: Feb 2015
City: Roseville, MN
#14

10-12-2021, 02:16 PM
Skip, There's an electrolytic cap in the FM discriminator circuit that should be replaced. It's a low voltage cap around 4-5 mfd and will be in the secondary circuit of the last IF transformer. These always cause problems if not replaced. Be careful with polarity, all the ones I've replaced have positive lead to ground.
(This post was last modified: 10-12-2021, 02:23 PM by RodB.)
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Messages In This Thread
Grundig 5399/u/s - by vecher - 10-07-2021, 01:24 PM
RE: Grundig 5399/u/s - by RodB - 10-07-2021, 02:56 PM
RE: Grundig 5399/u/s - by morzh - 10-07-2021, 08:21 PM
RE: Grundig 5399/u/s - by vecher - 10-08-2021, 12:18 AM
RE: Grundig 5399/u/s - by Greg - 10-08-2021, 12:21 PM
RE: Grundig 5399/u/s - by vecher - 10-10-2021, 05:11 PM
RE: Grundig 5399/u/s - by vecher - 10-11-2021, 09:48 AM
RE: Grundig 5399/u/s - by RodB - 10-11-2021, 12:13 PM
RE: Grundig 5399/u/s - by morzh - 10-11-2021, 05:55 PM
RE: Grundig 5399/u/s - by vecher - 10-11-2021, 11:40 PM
RE: Grundig 5399/u/s - by morzh - 10-12-2021, 12:09 AM
RE: Grundig 5399/u/s - by BrendaAnnD - 10-12-2021, 02:29 AM
RE: Grundig 5399/u/s - by Phlogiston - 10-12-2021, 01:10 PM
RE: Grundig 5399/u/s - by RodB - 10-12-2021, 02:16 PM



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