• 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.

Marantz 7C build tone rotary switch

Rayma, I agree with you on this.

I've started a different thread in Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc. to get feedback on how Marantz ended up going with the circuit they used with the 7C instead of the Baxandall type as this is something I'm very interested in. In fact, the whole area of tone controls utilized during this early era is fascinating to me.
 
Rayma, I agree with you on this.

I've started a different thread in Analog Line Level Preamplifiers , Passive Pre-amps, Crossovers, etc. to get feedback on how Marantz ended up going with the circuit they used with the 7C instead of the Baxandall type as this is something I'm very interested in. In fact, the whole area of tone controls utilized during this early era is fascinating to me.