High bias - TubelabSE - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Tubelab
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubelab Discussion and support of Tubelab products, prototypes and experiments

Thread Tools Search this Thread
Old 27th March 2011, 09:49 AM   #1
Green77 is offline Green77  Sweden
diyAudio Member
Join Date: May 2007
Location: MJOLBY
Default High bias - TubelabSE

Hi all.

Just finished my TubelabSE. Played a lot of music yeasterday
But i notice that my bias from PSU is very high..
After R6 i have 260 V (should be around 150 V). What could be the problem you think? Does it matter? I still adjust the 300b tubes to 70 mA (-68 V at grid)..

Many thanks //Daniel
  Reply With Quote
Old 27th March 2011, 11:46 AM   #2
diyAudio Member
Join Date: Apr 2007
Originally Posted by Green77 View Post
(should be around 150 V)
That's for 45 tube. For 300B, what you have for B- voltage is normal.
  Reply With Quote
Old 27th March 2011, 12:02 PM   #3
Green77 is offline Green77  Sweden
diyAudio Member
Join Date: May 2007
Location: MJOLBY
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
What determines how high bias can be on F-5? Russellc Pass Labs 93 5th June 2011 06:45 PM
High bias class D sendler Class D 42 18th September 2010 12:41 PM
High bias point. jnb Tubes / Valves 4 7th June 2007 03:39 PM
Fets for high bias Zen4 Buhl Pass Labs 0 9th December 2002 10:39 AM
how high to bias? eLarson Pass Labs 2 10th November 2002 01:00 PM

New To Site? Need Help?

All times are GMT. The time now is 12:28 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2