• 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.

Line Voltage with Yaqin MC-100B amp

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xmas111

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Joined 2009
Kevin,

The 6SN7's sound terrific!

I ended up putting together a ( 12 volt ) bucking transformer to knock down the line voltage a little. My line voltage can run as high as 128 v and a low of 123 v which is way above the recommended 115 v.

Now with the line voltage running lower I'm curious if I can raise the KT88's bias a little bit higher than the recommended .55v to .65v? Well maybe that's getting a little greedy!:D

And your right about us being close to each other. I'm in Plymouth. And I might take you up on meeting some local tub-o-philes someday. Sounds like it would be a great education and experience.:cheerful:

John
 
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