EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

Mark A. Toppo
  • Male
  • Rio Rancho, NM
  • United States
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  • Norman S Braithwaite

Mark A. Toppo's Discussions

AM/FM Philharmonic

Started this discussion. Last reply by Norman S Braithwaite Aug 24, 2020. 2 Replies

I was adjusting the sensitivity on the AM band when I lost audio for AM and all short wave bands. The FM band is still working. The radio was completely restored in 13 with attached pics. I have…Continue

 

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Norman S Braithwaite replied to Mark A. Toppo's discussion AM/FM Philharmonic
"In many cases the trimmer capacitors in square boxes under the chassis would become loose from the variable selectivity shaft and could move.  The cause is expansion of the pot-metal rotor collar resulting in the set screw coming loose from the…"
Aug 24, 2020
Norman S Braithwaite commented on Mark A. Toppo's status
"In many cases the trimmer capacitors in square boxes under the chassis would become loose from the variable selectivity shaft and could move.  The cause is expansion of the pot-metal rotor collar resulting in the set screw coming loose from the…"
Aug 24, 2020
Scott Seickel replied to Mark A. Toppo's discussion AM/FM Philharmonic
"Could be an endless list of things.  I suggest having a competent tech look at it.  The AM and the FM section only share the power supply/audio output. "
Aug 24, 2020
Mark A. Toppo posted a discussion

AM/FM Philharmonic

I was adjusting the sensitivity on the AM band when I lost audio for AM and all short wave bands. The FM band is still working. The radio was completely restored in 13 with attached pics. I have checked all the tubes. I pulled the chassis and could not find any glaring problem. Has anyone had this happen to their Philharmonic? I got the radio complete with no cabinet 11 years ago. It had once belonged to a ham and the original chrome is the best I've seen. I got a donor Philco at a yard sale…See More
Aug 24, 2020
Mark A. Toppo posted a status
"AM FM Philharmonic no audio on all bands except FM. Happened when adjusting sensitivity. Fully restored with pics on the Radio Museum site."
Aug 24, 2020

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