Symptom: SSB has working receive while AM is measurably low receive. 5uV is the threshold before it becomes heard.
Work found done to it when first examined: This is a literal 'barn find' from a local op. Hack job had been done for xtra freqs; was noted using the NB/ANL switches, opened clarifier, and TR24 had been removed. Final was found to be volted as well. AM mode indicator lamp will not light after replacing bulb.
Tested all of the diodes in the receiver circuit (D12, D13, D14, D15, and D16) and D21 & 22. Pulled D68 out to see if the AGC circuit was a fault; no dice. TR14 & 15 removed/tested/OK. Quick alignment to the receiver yielded no joy. TX in AM and SSB are just fine.
Many thanks in advance!
Work found done to it when first examined: This is a literal 'barn find' from a local op. Hack job had been done for xtra freqs; was noted using the NB/ANL switches, opened clarifier, and TR24 had been removed. Final was found to be volted as well. AM mode indicator lamp will not light after replacing bulb.
Tested all of the diodes in the receiver circuit (D12, D13, D14, D15, and D16) and D21 & 22. Pulled D68 out to see if the AGC circuit was a fault; no dice. TR14 & 15 removed/tested/OK. Quick alignment to the receiver yielded no joy. TX in AM and SSB are just fine.
Many thanks in advance!
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