Balanced Phono Stages - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs

Pass Labs This forum is dedicated to Pass Labs discussion.

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 23rd March 2002, 05:54 PM   #1
diyAudio Member
Join Date: Dec 2000
Location: Germany
Angry Balanced Phono Stages

Hello you guys, especially Gray Rollins.

Working on a balanced Tubed Phono stage too.
Lundahl 9206 Transformer, Diff. Cascode with floating RIAA between the anodes, current sourced
(transistor) and another Diff. Amp as 2. Amp/Driver.

has anyone better suggestion? As I saw Gray Rollins is working on a balanced Phono. Can you provide some Info.

  Reply With Quote
Old 24th March 2002, 12:02 AM   #2
diyAudio Member
hagtech's Avatar
Join Date: Mar 2002
Location: Hawaii
That's a good way to do it. The cascode does a great job reducing input capacitance. You can also replace the input tubes with jfets for more gain.

I'd almost suggest splitting the RIAA between gain sections and adding a follower-type buffer for the output. But if I did, you'd build what I have.
  Reply With Quote
Old 24th March 2002, 04:46 AM   #3
diyAudio Member
Brett's Avatar
Join Date: Jan 2002
Default Allen Wright

Check out and look in schematics at the RTP series. Amazing linearity and SNR.
  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
Which of these two phono stages rman Tubes / Valves 15 11th June 2008 03:28 AM
Help - Balanced Pearl Phono Irakli Pass Labs 15 19th November 2007 04:22 AM
Decoupling in Phono stages. Jeb-D. Tubes / Valves 7 6th September 2007 06:17 PM
Balanced Fet phono? tubee Analogue Source 34 18th May 2006 07:23 PM
transducer's balanced phono amp peranders Analogue Source 0 15th February 2003 09:03 AM

New To Site? Need Help?

All times are GMT. The time now is 10:19 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2