Magnetron Unity Gain Issue

[anevilspar7an]

I've got a Magnetron that I put together a while ago that didn't work until recently. I don't know if this is part of the circuit but with the Gain trimpot all the way down I'm above unity gain a decent amount and with it above a 1/4 turn it gets into boosted level territory.

 

[Cybercow]

Can you provide some good, clear photos of the circuit board and wiring? Otherwise, we can't see what you're up against.

Also, have you double-checked all of your component values?

 

[anevilspar7an]

I can do some checks tomorrow to double check my resistors and capacitors. When I'm done with that I'll get those photos as well.

 

[Cybercow]

I can do some checks tomorrow to double check my resistors and capacitors. When I'm done with that I'll get those photos as well.

While you're in there, be sure to quick check the power supply levels for the +9V and +5V distribution.

 

[anevilspar7an]

The voltage regulator is outputting exactly 5V, VREF is at 4.5V, and VCC is at 9V. I also put the Gain trim on an external potentiometer. All resistor codes check out, except for the LFO current resistor, I have an 1.8K in there. Capacitors are also good.