01-10-2026, 12:41 AM
This set is a rather straight forward radio, very similar to AA5 sets only with a power transformer. I don't think that the volume control has anything to do with your problem.
Check the antenna coil. From the ANT to GND terminals, the reading should be about 11.7 Ohm in broadcast mode and 0.7 Ohm in SW mode. It is not uncommon to find this coil open because of lightning hits. Also, make sure that the switch that shorts out the BC Band primary on the antenna coil works. This is part of band switch #2 on the following schematic:
https://philcoradio.com/library/download...l.%201.pdf
Seems to me that the BC coil is 11 Ohm and the SW coil is 0.7 Ohm. Check the secondary of the antenna coil and the secondary of the oscillator coil (the secondary is the one that is tapped. the band switch shorts certain primary and secondary windings of the antenna coil and shorts the middle of the oscillator coil secondary in 3 separate circuits. Make sure that this switch works.
Hope this helps.
Check the antenna coil. From the ANT to GND terminals, the reading should be about 11.7 Ohm in broadcast mode and 0.7 Ohm in SW mode. It is not uncommon to find this coil open because of lightning hits. Also, make sure that the switch that shorts out the BC Band primary on the antenna coil works. This is part of band switch #2 on the following schematic:
https://philcoradio.com/library/download...l.%201.pdf
Seems to me that the BC coil is 11 Ohm and the SW coil is 0.7 Ohm. Check the secondary of the antenna coil and the secondary of the oscillator coil (the secondary is the one that is tapped. the band switch shorts certain primary and secondary windings of the antenna coil and shorts the middle of the oscillator coil secondary in 3 separate circuits. Make sure that this switch works.
Hope this helps.
"Do Justly, love Mercy and walk humbly with your God"- Micah 6:8
"Let us begin to do good"- St. Francis
Best Regards,
MrFixr55
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