10-08-2018, 12:35 PM
So a quick update.
I was looking at the schematics and checking connections/voltages again with the radio on and noticed when I touched PIN number 6 on the 7R7 tube,or moved the wire (green) coming off the pin, the humming in my speaker totally stopped. No sound at all. When I let go the sound came back. The green wire coming off pin 6 goes to the trimmer between 7R7 and 6BA6.
Any reason for this?
I’m also still in the process of finding someone locally to test my tubes.
I was looking at the schematics and checking connections/voltages again with the radio on and noticed when I touched PIN number 6 on the 7R7 tube,or moved the wire (green) coming off the pin, the humming in my speaker totally stopped. No sound at all. When I let go the sound came back. The green wire coming off pin 6 goes to the trimmer between 7R7 and 6BA6.
Any reason for this?
I’m also still in the process of finding someone locally to test my tubes.
