Willsenton R8: Mod of the Voltage Regulator 6SN7 tube

In this video I show in detail the modifications to the center 6SN7 voltage stabilizer tube converting it into a dual rail power supply to eliminate cross channel noise and distortion.

Note at 18:45 I say "The voltage to the phase splitter" when I meant to say "The voltage to the preamp tubes". I didn't catch that one minor edit until it was uploaded to YT.

This is a video series about the popular Willsenton R8 KT88 EL34 Push Pull tube audio amplifier. We will go through the repair this amp needs, testing and reviews of the amp as delivered, and then work on modifications to improve the sound quality and durability.

Schematics are here: https://www.skunkiedesigns.com/r8-mods

A great book for DIY amp building info!
Morgan Jones: Building Valve Amplifiers.
https://amzn.to/3X2hKfk

You can buy this amplifier here
https://amzn.to/3Q3Ynjr

The tools I use in this video include:

Hakko FX888D-23BY Digital Soldering Station
https://amzn.to/3WUf7MP