Model 89 RF stage

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Model 89 RF stage

RadioDR401
Junior Member

Posts: 28
Threads: 7
Joined: Feb 2017
City: Coatesville PA

06-11-2017, 05:38 PM

Thanks for the tips! I also hit upon another idea to test the stage gain. I metered the AVC line with the antenna wire on the clip, then on the 44 grid and finally on the 77 grid. The RF stage is definitely working since I got about -2.3 volts from a weak station with the antenna on the clip vs about -0.8 on the 77 grid. The station sounds about the same but clearly the RF stage is working. I'll try the IF stages next as you suggested.

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Dave Thomas
Coatesville, PA

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Messages In This Thread

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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