05-11-2020, 10:19 AM
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
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
