Home Tube DIY Asylum

Do It Yourself (DIY) paradise for tube and SET project builders.

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Tube DIY Asylum ]
[ Alert Moderator ]

RE: SE 6V6 triode : effect of plate to plate feedback ...

For max power out, a scope probe is hooked up across a load resistor on the OPT secondary.

I run a 1KHz test signal from my soundcard into the amp and look at the point where the waveform clips, then back off until the sinewave looks undistorted.

I also have a true RMS voltmeter across the load resistor to record the AC signal voltage and use the typical ohm's law equation for power.

As for why the THD% is lower with local FBK than non-feedback version, that follows every SE pentode class circuit I have ever tried building.


This post is made possible by the generous support of people like you and our sponsors:
  McShane Design  

Follow Ups Full Thread
Follow Ups
FAQ

Post a Message!

 Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
Subject:
Message:   (Posts are subject to Content Rules)
Optional Link URL:
Optional Link Title:
Optional Image URL:
Upload Image:
E-mail Replies:  Automagically notify you when someone responds.

[ Top Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]
[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]