• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Sensitivity Limiter - Bogen Mx-30a

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T

Toddebner

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Joined 2006
I have a Bogen Mx-30a that I am drawing out the circuit on so I can redesign into a guitar amp.

I plan to share the schematic here when I'm done.

One of the 7247 preamp tubes is connected to a sensitivity limiter pot which is a screwdriver adjustable control accessible from the back of the amplifier.

Can anyone explain what this is and what it does ?
 
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