Grundig 80U

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Grundig 80U

Amie

No Longer a Member

Posts: 479
Location: Norfolk

#74

21-08-2019, 09:16 PM

One final note

If R5 (2M) is cut, that goes from the AGC diode anode to the junction of the last AM IF and 50K resistor, the sound dies away to nearly nothing, but the IF signal at the anode of the EBF80 stays the same.....

Amie.

Quote

Messages In This Thread

Grundig 80U - by Amie - 16-08-2019, 11:12 AM

RE: Grundig 80U - by pwdrive - 16-08-2019, 12:04 PM

RE: Grundig 80U - by reset - 16-08-2019, 03:56 PM

RE: Grundig 80U - by Amie - 16-08-2019, 08:02 PM

RE: Grundig 80U - by Amie - 17-08-2019, 03:36 PM

RE: Grundig 80U - by Amie - 16-08-2019, 05:15 PM

RE: Grundig 80U - by ppppenguin - 16-08-2019, 12:21 PM

RE: Grundig 80U - by Amie - 16-08-2019, 01:21 PM

RE: Grundig 80U - by Mike Watterson - 16-08-2019, 01:43 PM

RE: Grundig 80U - by Amie - 16-08-2019, 02:05 PM

RE: Grundig 80U - by Terry - 16-08-2019, 09:07 PM

RE: Grundig 80U - by Terry - 16-08-2019, 09:02 PM

RE: Grundig 80U - by Amie - 16-08-2019, 10:59 PM

RE: Grundig 80U - by Mike Watterson - 16-08-2019, 01:41 PM

RE: Grundig 80U - by Mike Watterson - 17-08-2019, 07:12 AM

RE: Grundig 80U - by Terry - 17-08-2019, 10:35 AM

RE: Grundig 80U - by Terry - 19-08-2019, 11:08 AM

RE: Grundig 80U - by ppppenguin - 17-08-2019, 04:28 PM

RE: Grundig 80U - by Amie - 17-08-2019, 04:55 PM

RE: Grundig 80U - by Ed_Dinning - 17-08-2019, 05:19 PM

RE: Grundig 80U - by Mike Watterson - 17-08-2019, 05:22 PM

RE: Grundig 80U - by ppppenguin - 17-08-2019, 05:25 PM

RE: Grundig 80U - by Amie - 17-08-2019, 05:37 PM

RE: Grundig 80U - by Mike Watterson - 17-08-2019, 06:06 PM

RE: Grundig 80U - by ppppenguin - 17-08-2019, 05:46 PM

RE: Grundig 80U - by Terry - 17-08-2019, 05:51 PM

RE: Grundig 80U - by Amie - 17-08-2019, 06:54 PM

RE: Grundig 80U - by ppppenguin - 17-08-2019, 07:09 PM

RE: Grundig 80U - by Terry - 17-08-2019, 08:28 PM

RE: Grundig 80U - by Amie - 18-08-2019, 11:59 AM

RE: Grundig 80U - by Terry - 18-08-2019, 04:32 PM

RE: Grundig 80U - by Old Sparky - 18-08-2019, 12:57 PM

RE: Grundig 80U - by ppppenguin - 18-08-2019, 01:03 PM

RE: Grundig 80U - by Mike Watterson - 18-08-2019, 02:14 PM

RE: Grundig 80U - by Amie - 18-08-2019, 02:17 PM

RE: Grundig 80U - by Amie - 18-08-2019, 04:49 PM

RE: Grundig 80U - by pwdrive - 18-08-2019, 04:55 PM

RE: Grundig 80U - by Terry - 18-08-2019, 08:00 PM

RE: Grundig 80U - by Mike Watterson - 18-08-2019, 06:08 PM

RE: Grundig 80U - by Mike Watterson - 19-08-2019, 07:52 AM

RE: Grundig 80U - by Amie - 19-08-2019, 12:04 PM

RE: Grundig 80U - by ppppenguin - 19-08-2019, 11:51 AM

RE: Grundig 80U - by Terry - 19-08-2019, 12:52 PM

RE: Grundig 80U - by Old Sparky - 19-08-2019, 12:09 PM

RE: Grundig 80U - by ppppenguin - 19-08-2019, 12:56 PM

RE: Grundig 80U - by Terry - 19-08-2019, 01:18 PM

RE: Grundig 80U - by Mike Watterson - 19-08-2019, 12:59 PM

RE: Grundig 80U - by Terry - 19-08-2019, 01:14 PM

RE: Grundig 80U - by Mike Watterson - 19-08-2019, 04:00 PM

RE: Grundig 80U - by Amie - 19-08-2019, 01:19 PM

RE: Grundig 80U - by Terry - 19-08-2019, 01:25 PM

RE: Grundig 80U - by Terry - 19-08-2019, 04:31 PM

RE: Grundig 80U - by Amie - 19-08-2019, 04:55 PM

RE: Grundig 80U - by Terry - 19-08-2019, 05:06 PM

RE: Grundig 80U - by pwdrive - 19-08-2019, 05:10 PM

RE: Grundig 80U - by Amie - 19-08-2019, 09:25 PM

RE: Grundig 80U - by Mike Watterson - 19-08-2019, 05:14 PM

RE: Grundig 80U - by Amie - 19-08-2019, 09:11 PM

RE: Grundig 80U - by Terry - 20-08-2019, 09:12 AM

RE: Grundig 80U - by Amie - 20-08-2019, 08:49 PM

RE: Grundig 80U - by pwdrive - 20-08-2019, 09:12 AM

RE: Grundig 80U - by pwdrive - 21-08-2019, 10:32 AM

RE: Grundig 80U - by Terry - 21-08-2019, 12:26 PM

RE: Grundig 80U - by pwdrive - 21-08-2019, 12:32 PM

RE: Grundig 80U - by Terry - 21-08-2019, 12:41 PM

RE: Grundig 80U - by pwdrive - 21-08-2019, 12:48 PM

RE: Grundig 80U - by Terry - 21-08-2019, 03:06 PM

RE: Grundig 80U - by pwdrive - 21-08-2019, 03:21 PM

RE: Grundig 80U - by Terry - 21-08-2019, 04:17 PM

RE: Grundig 80U - by pwdrive - 21-08-2019, 04:29 PM

RE: Grundig 80U - by Terry - 21-08-2019, 05:08 PM

RE: Grundig 80U - by pwdrive - 21-08-2019, 05:34 PM

RE: Grundig 80U - by Amie - 21-08-2019, 08:33 PM

RE: Grundig 80U - by Amie - 21-08-2019, 09:16 PM

RE: Grundig 80U - by Terry - 22-08-2019, 10:13 AM

RE: Grundig 80U - by Amie - 22-08-2019, 10:48 AM

RE: Grundig 80U - by Amie - 22-08-2019, 11:33 AM

RE: Grundig 80U - by Terry - 22-08-2019, 12:44 PM

RE: Grundig 80U - by pwdrive - 22-08-2019, 12:56 PM

RE: Grundig 80U - by Amie - 22-08-2019, 02:11 PM

RE: Grundig 80U - by reset - 22-08-2019, 02:33 PM

RE: Grundig 80U - by pwdrive - 22-08-2019, 03:21 PM

RE: Grundig 80U - by Terry - 22-08-2019, 03:45 PM

RE: Grundig 80U - by pwdrive - 22-08-2019, 03:11 PM

RE: Grundig 80U - by Amie - 22-08-2019, 03:36 PM

RE: Grundig 80U - by pwdrive - 23-08-2019, 10:47 AM

RE: Grundig 80U - by Amie - 23-08-2019, 11:01 AM

RE: Grundig 80U - by pwdrive - 23-08-2019, 11:18 AM

RE: Grundig 80U - by Amie - 23-08-2019, 01:16 PM

RE: Grundig 80U - by pwdrive - 23-08-2019, 01:58 PM

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