Home Tubes Asylum

Questions about tubes and gear that glows. FAQ

Screen resistors

Al, on many Fender amps... changing the screen resistors to wire wound or metal oxide, 5-watt 1k-ohm usually helps stabilize the output tubes.

My DR runs over 450VDC on the plates. I bias them to about 20mA per tube.

 photo bias and voltage_zpsiszlpegp.jpg

Photo is of my Super Reverb, I put 1k-ohm bricks onto the screen grids.

 photo screen resistor_zpsk7am3ppn.jpg

Good luck!

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

Follow Ups Full Thread
Follow Ups
  • Screen resistors - FenderLover 17:53:11 06/08/17 (0)


Post a Message!

Forgot Password?
Moniker (Username):
Password (Optional):
  Remember my Moniker & Password  (What's this?)    Eat Me
E-Mail (Optional):
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.