11-21-2025, 01:17 AM
Yes, it is. You may have to unsolder the connections and "ohm" that section of the volume control that is across the antenna and ground connections. You will likely find it open. Check the antenna coil primary also.
As stated in my other post, the common method of controlling volume on early sets was to have a 2 section volume control where one section shunts the antenna to ground at 0 volume and provides a negative grid bias or positive cathode bias to the RF (and IF) amp(s). The volume control in the Zenith shunts the antenna coil but does not provide bias to the RF or Amps. Apparently, it controls the resistance between ground and one leg of a cap whose other leg goes to the RF Coil.
Hope this helps.
As stated in my other post, the common method of controlling volume on early sets was to have a 2 section volume control where one section shunts the antenna to ground at 0 volume and provides a negative grid bias or positive cathode bias to the RF (and IF) amp(s). The volume control in the Zenith shunts the antenna coil but does not provide bias to the RF or Amps. Apparently, it controls the resistance between ground and one leg of a cap whose other leg goes to the RF Coil.
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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