philco tropic model 42-760
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Joined: Nov 2012
City: Wilsonville
State, Province, Country: OR
A signal tracer is a tool to help track down which stage of your radio is not working correctly. If you inject a modulated rf signal from your signal generator into at the antenna of your radio, and if all is working well, you should hear the audio tone from the generator (usually 400 hz or 1000hz tone) coming out of your radio's speaker. If you don't hear the tone, you can use your signal tracer with its probe to test the grid on each of the stages from the antenna to through to the speaker. The stage where you stop hearing the tone means you just went past something that is not working correctly.
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RE: philco tropic model 42-760 - by klondike98 - 11-12-2016, 04:51 PM
Users browsing this thread: 37 Guest(s)
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Recent Posts
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RCA T62 is playing.....
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Beautiful set.morzh — 09:07 PM |
An attempt to remove the Field Coil from a G speaker
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Well....here it is.
The green stuff. Unfortunately, probably penetrates deep.
I opened the top layer and saw that:
...morzh — 08:58 PM |
Philco 91 Restore Code ??
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:clap: :clap: :clap: :clap:
Really nice workmanship!!! Top of the chassis looks great.
Sorry about the long winded e...MrFixr55 — 08:09 PM |
Philco 40-120C Restoration
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Thank you for your reply. I will check voltages on the other tubes, look at resistor 23 and cap 25, etc. If all else fai...bluecap — 07:58 PM |
RCA T62 is playing.....
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Nice looking set great save. DavidDavid — 07:48 PM |
Philco 89 indicator light.
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Hello Jim, I have done several 89s. The trick is to move the drum in or out on it's shaft. You will need to loosen a set...dconant — 07:36 PM |
An attempt to remove the Field Coil from a G speaker
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MrFixr
Yes, it is my plan to go with 45rpm spider if I go that far.
No, the pole was not left-handed as I unscrewed ...morzh — 07:14 PM |
Philco 40-120C Restoration
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Change the tube. Check the tube's bias network.
Are any other tubes experience the drop or just this?`
Is resistor 23 OK...morzh — 07:09 PM |
Philco 89 indicator light.
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I forgot how the pointer is formed: could you show the way it is formed and how you tried to change it?morzh — 07:01 PM |
An attempt to remove the Field Coil from a G speaker
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Was that pole piece left handed ?
Since the metal "spider" is toast, wonder if you can either get the "4...MrFixr55 — 06:54 PM |
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