output bias servo - diyAudio
Go Back   Home > Forums > Amplifiers > Tubes / Valves
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 1st October 2006, 11:43 PM   #1
diyAudio Member
Join Date: Mar 2003
Location: Zürich
Default output bias servo

Question to all owners of Valve amplifiers, 3rd. edition!

I am looking at Morgan Jones's output bias servo, presented on page 420. Besides being interested in other people experiences with those kind of servos, I am wondering if I could use a dual opamp in a single package. I know there is some difference between them, but I have no idea what, and how it would influence performance of the servo. The design asks for a 5534 and a 071, the first being a "low noise OPAMP", the second a 'low noise, J fet input".

I want to use a single package because I want to make the PCB as small as possible. I could be either a 5532 or a 072, both are cheap!

Many thanks for the attention

  Reply With Quote
Old 2nd October 2006, 01:27 AM   #2
diyAudio Member
Geek's Avatar
Join Date: Sep 2004

Yes, I did a Broskie style autobias using the 4558 dual opamp.
  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
push pull bias servo xdissent Tubes / Valves 25 6th August 2013 08:35 PM
Thermistor use in power amp bias servo circuit? mhb Solid State 9 8th October 2012 10:33 AM
idea for a simple bias servo for AB PP vladn Tubes / Valves 27 20th October 2008 02:32 AM
possibility of using SERVO BIAS on Zen v9. gionag Pass Labs 4 9th October 2008 07:51 PM
N-Channel mosfet amplifier with servo bias f4bok Solid State 14 22nd September 2004 06:32 PM

New To Site? Need Help?

All times are GMT. The time now is 10:14 AM.

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