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.
I just bought a couple 6N17P pencil tubes, from ebay and I want to build a phono prea-amp based on them. So, does anyone knows a shematic of a RIAA circuit with such tubes? Also, do they run on low voltage?