EH Scott Radio Enthusiasts

The Fine Things are Always Hand Made

June 2012 Blog Posts (1)

800B Phantom voltage

Maybe someone has run across a similar situation as I am encountering. AM reception is nonexistant except for static. FM works fine. We have discovered what appears as phantom voltage of negative 300-400 volts at the grid of 6J5 AM oscillator. It fluctuates wildly when lead is copacativly coupled with my hand and pin 5 is moved we can hear a station but need to wiggle the lead with our hand. Sounds strange I know, but looking for ideas since all surrounding resistors and micas test…


Added by Robert Jackson on June 21, 2012 at 10:02pm — 2 Comments

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