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40-201 oscillator not working.
#3

Thanks Terry,


Your work around worked perfectly. I was able to tune in the local, strong AM station using my signal generator as an oscillator. It confirms what I had already assumed, my oscillator is dead. Now how to get it going? I have checked and rechecked all of the small passive components in that circuit. I am settling on the two coils which are employed in the broadcast band. Do you know where I might find specifications for those coils? Do you have an ideas about what they should be?
Coil #28 is identified as, “Short wave oscillator coil, part # 32-3242.” But the primary side of that coil, pins #3 and #4, are fundamental to all of the oscillator circuits. My failure is both manual tune as well as push button and as far as I can see that coil is the only component that is necessary for both circuits. I have ordered a coil in hopes I can replicate what's there, (https://www.tubesandmore.com/products/co...oscillator.) But I'm flying blind, I have no idea what value that original coil had. I don't care about the shortwave band, but I need that primary in order to get things working.
Correct me if I'm making bad assumptions here.
Thanks


Tom


Messages In This Thread
40-201 oscillator not working. - by Tomie - 04-30-2020, 04:15 PM
RE: 40-201 oscillator not working. - by Tomie - 05-11-2020, 11:19 AM
RE: 40-201 oscillator not working. - by Tomie - 05-12-2020, 01:32 PM
RE: 40-201 oscillator not working. - by Tomie - 05-12-2020, 01:38 PM
RE: 40-201 oscillator not working. - by Tomie - 05-16-2020, 11:35 AM
RE: 40-201 oscillator not working. - by RodB - 05-16-2020, 12:33 PM
RE: 40-201 oscillator not working. - by Tomie - 05-16-2020, 02:26 PM
RE: 40-201 oscillator not working. - by RodB - 05-16-2020, 05:17 PM
RE: 40-201 oscillator not working. - by Tomie - 05-16-2020, 06:08 PM
RE: 40-201 oscillator not working. - by RodB - 05-16-2020, 07:02 PM
RE: 40-201 oscillator not working. - by Tomie - 05-17-2020, 12:57 PM
RE: 40-201 oscillator not working. - by RodB - 05-17-2020, 06:03 PM
RE: 40-201 oscillator not working. - by Tomie - 05-18-2020, 12:13 PM
RE: 40-201 oscillator not working. - by Tomie - 05-18-2020, 01:15 PM
RE: 40-201 oscillator not working. - by Tomie - 05-18-2020, 06:09 PM
RE: 40-201 oscillator not working. - by RodB - 05-18-2020, 08:43 PM
RE: 40-201 oscillator not working. - by Tomie - 05-19-2020, 01:54 PM
RE: 40-201 oscillator not working. - by RodB - 05-19-2020, 04:56 PM
RE: 40-201 oscillator not working. - by Tomie - 05-21-2020, 07:03 PM
RE: 40-201 oscillator not working. - by RodB - 05-21-2020, 10:03 PM



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