• 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.

Papworth (Mentmore / M&A) M200 bias setting / schematic

There’s only one picture in this thread. The fuseholder can be quite clearly seen. Nr two diode FROM the fuseholder is also quite easy to spot. However, after blowing up this portion of the picture I can see that both the two diodes close to said fuseholder are oriented same direction.

Thus making my question moot.

Attached copy of post 11, the picture, and blown up copy of mentioned parts.

Maybe you can see the picture now.

R
 

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