Home OTL Asylum

OTL, Output Transformerless Amplifier User Group.

Re: feedback on b+of circlotron

Hi,

My Atma-Sphere M-60's started out with 1 ohm 3W plate resistors when I built them as a kit. I tended to lose the plate resistors when a tube blew, so I upped the wattage to 5W. No more blown resistors when a tube died. When Ralph told me about the cathode resistors, I removed the plate resistors and installed 5 ohm 5W resistors (Dale wirewound in my case) on the cathodes. Improved sonics to my ears, and I haven't lost a single tube in nearly a year.

I don't understand how to add a picture on this forum, but I would be happy to send a picture of my amp underside. Just contact me and I will email it to you--

William


This post is made possible by the generous support of people like you and our sponsors:
  Atma-Sphere Music Systems, Inc.  


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.