Model 89 RF stage

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Model 89 RF stage

Radioroslyn
Phorum Expert

Posts: 7,285
Threads: 268
Joined: Dec 2009
City: Roslyn Pa

06-10-2017, 09:03 PM

If your RF amp wasn't working your symptoms would be poor reception at the ant post and grid cap of the rf amp, signal would be good at the mixer grid cap. I'm thinking that you've got a weak mixer, IF amp tube , or alignment issue if the plate, screen, and cathode voltage are correct. Oh also have a look at the bandswitch contacts are clean and making good connection.

GL

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry

(This post was last modified: 06-10-2017, 09:09 PM by Radioroslyn.)

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Model 89 RF stage - by RadioDR401 - 06-10-2017, 03:49 PM

RE: Model 89 RF stage - by Radioroslyn - 06-10-2017, 09:03 PM

RE: Model 89 RF stage - by RadioDR401 - 06-11-2017, 05:38 PM

RE: Model 89 RF stage - by RadioDR401 - 06-17-2017, 08:32 PM

RE: Model 89 RF stage - by Radioroslyn - 06-17-2017, 09:24 PM

RE: Model 89 RF stage - by RadioDR401 - 07-17-2017, 05:55 PM

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