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46-431
#1

Just finished recapping this model...which should've been a straight forward fairly easy restoration (I've done two 42-345's, and a 42-327 which are similar without problems). But it's been anything but. First the band switch was majorly corroded. I'd never seen one that bad before. I may have to just leave it on AM broadcast because it's so finicky. But that's not the main problem I'm having. I can't get anything on the dial below 1300. There is no discernable drop off point. Just hissing like it's trying to receive but can't quite do it. The local station at 1470 comes in loud and clear and a few others around it, but that's it. I tried swapping tubes one at a time to no avail. I traced the signal all the way through each tube plate and grid, so that part is good. So I'm looking for ideas. What would cause 3/4 of the dial to be dead? Could it be a mica cap? I didn't change those. The resistors all checked good, but could one that has drifted border line be a cause of this? I had a couple of radios in the past that a tube was the culprit of the missing part of the dial but I don't believe that's the case here. Any ideas would be greatly appreciated! Here's a link to the schematic...

http://www.freeinfosociety.com/electroni...hp?id=1804

Greg V.
West Bend, WI
Member WARCI.org


Messages In This Thread
46-431 - by NostalgiaRadioTime - 11-29-2015, 07:19 PM
RE: 46-431 - by NostalgiaRadioTime - 11-29-2015, 08:49 PM
RE: 46-431 - by mikethedruid - 11-29-2015, 09:04 PM
RE: 46-431 - by NostalgiaRadioTime - 11-29-2015, 09:28 PM
RE: 46-431 - by Radioroslyn - 11-30-2015, 12:35 AM
RE: 46-431 - by LASJayhawk - 11-30-2015, 05:30 PM
RE: 46-431 - by NostalgiaRadioTime - 11-30-2015, 08:26 PM



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