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Trying to trouble shoot Hum with LP PSU Pre
#7
Jonathan

DO NOT scan, distribute or post our kit notes - it is illegal !!!

The basic layout organisation given above is a starting point and it may require that you use a wider chassis to achieve it.

TUT3 is the best guide available for correct wiring, grounding and layout. It details exactly why a star ground is NOT of much use in an audio amp. Many hobbyists have found out that fact for themselves by rewiring a Fender amp using a star and the amp is noisier. They call to ask why that is and I tell them and they have to rewire everything again. Following our Galactic Ground scheme, the circuit will have its lowest noise and best note articulation.

Just because you see parroted information everywhere does not make it correct. At some point, one guy said the Earth is round, now everyone knows that is true but it took a while.
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RE: Trying to trouble shoot Hum with LP PSU Pre - by K O'Connor - 05-05-2020, 01:42 PM

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Come in where it's warm!
A warm welcome to tube amp modding fans and those interested in hi-fi audio! Readers of Kevin O'Connor's The Ultimate Tone (TUT) book series form a part of our population. Kevin O'Connor is the creator of the popular Power Scaling methodology for amplifiers.
Please remember these three principles: respect, sharing, community.
Not familiar with The Ultimate Tone book series? See discussion topics, or click here to visit London Power/Power Press Publishing.

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