Posts: 1,824
Threads: 114
Joined: Jul 2014
City: Sneedville, TN
Sometimes you can't rest until you have figured something out. I noticed a discrepancy between the schematic and the way the radio is actually wired. It is wired as the layout diagram shows, NOT as the schematic, both in the RCA manual and the Rider manual shows! I checked this out tonight. I wired in the components that are missing in the layout diagram and tested the radio. It made no difference at all in the functioning. I suppose this is a modification made after the schematic, but before the layout diagram, but was not noted in Rider's where the layout diagram appears. In the time since I first redid this part of the chassis and tonight, I received 2.2 MEG 3 watt 1% resistors, so I replaced the 2 MEG + 220K I had previously installed when I returned the radio to the way the layout shows.
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VERY INTERESTING !
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Recent Posts
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Part numbers to model cross
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| I looked thru the documents and did not see one. Might have missed it though.Jim Dutridge — 07:16 PM |
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Philco 42-345 Restoration/Repair
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| Please tell me this was it, I replaced resistor 27 and it's playing on the broadcast band. I am afraid to change the ban...osanders0311 — 06:12 PM |
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Philco 42-345 Restoration/Repair
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| So far still no broadcast, I am posting pictures of #14 Oscillator and also a resistor #27 which connects to an XXL tube...osanders0311 — 04:02 PM |
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| I believe there is that document, and I think we might have it in the Library.morzh — 03:29 PM |
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Philco 42-345 Restoration/Repair
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| Ok MrFixr55,
I have tried the DeoxIT D5 on the band switch and even though it has relieved the tension I felt when turn...osanders0311 — 11:11 AM |
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| Is there a reference somewhere where you can punch in Philco part numbers and see what models those parts were used in?Jim Dutridge — 10:17 AM |
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Philco 42-345 Restoration/Repair
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| Hi OSanders,
Look carefully at the band switch. Turn it slowly and "wiggle" it around the desired band. ...MrFixr55 — 12:33 AM |
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| Vlad95,
Thank you for the stringing guides and wow there are so manyosanders0311 — 06:01 PM |
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5U4 vs 5Z4 tubes
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