04-19-2014, 12:19 PM
BDI, I'm assuming we are talking about the 2nd detector 77. The voltages you posted are right in the ballpark. The plate should be 70 volts and the screen grid should be 23 volts.
You are receiving only one station near the low end of the band. That makes me think the oscillator is not working. If you have a working radio, tune it to about 1460 and place it next to your 84. Now, tune the 84 to 1000 and rock the dial a little. You should hear a squeal come and go in the working radio. If you don't hear a squeal, we need to look at the oscillator section.
Steve
You are receiving only one station near the low end of the band. That makes me think the oscillator is not working. If you have a working radio, tune it to about 1460 and place it next to your 84. Now, tune the 84 to 1000 and rock the dial a little. You should hear a squeal come and go in the working radio. If you don't hear a squeal, we need to look at the oscillator section.
Steve
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