Log in
Log in
Forgot your password ?
or
Create an account
or
Log in using a Facebook account
NotificationsNo new notification
< Back to Crate Blue Voodoo BV300HB
Enlarge
Add this product to
  • My former gear
  • My current gear
  • My wishlist
Crate Blue Voodoo BV300HB
Images
1/7
Crate Blue Voodoo BV300HB

Tube Guitar Amp Head from Crate

Write a user review or Ask for a user review
Product presentation Description
Reviews
Price engine
Classified Ads
Forums 1 1

BV300HB Bias

  • 1 comment
  • 2 participants
  • 2,885 views
  • 2 followers
Topic BV300HB Bias
Help!
I have a BV300HB and the schematic and some know how...I went to set the bias on a new set of 6550's. The specs say set to -120mV to ground on tp #1.
It's a negative bias setup so reducing the voltage to say -110mV would make it run hotter...I had the new tubes in it for a couple of months with no problems but i thought hey...maybe I can make it sound better by heating it up a bit. So I broke out the DVM and went to set the bias and it reads -88mV! should have exploded way back. The tubes do not glow/get hot after several hours on. Why would it be out of range like this? Any ideas or things to try?
tom
2
Do you happen to have the bias setting for tp 2 as well?