5 leads pp output transformer - 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 7th April 2013, 02:07 PM   #1
wf1318 is offline wf1318  Hong Kong
diyAudio Member
Join Date: Feb 2006
Location: Hong Kong
Default 5 leads pp output transformer

Click the image to open in full size.

Hello everyone!
I am new in tube amp, and I have a question about PP Output Transformer.

Above is a 5 leads 5K PP output transformer picture.
P1 to P2 is 5K, B is CT
So, what is the value for UL1 and UL2? How to determine it?

It's that it is a 2.5K-1.25K-0-1.25K-2.5k structure on the primary winding?

  Reply With Quote
Old 8th April 2013, 12:07 PM   #2
Tesla88 is offline Tesla88  Italy
diyAudio Member
Tesla88's Avatar
Join Date: Dec 2011
Location: Italy
UL Taps are for Ultralinear push pull operation , they goes to pentode screen , often they are taped at 43% between center tap and plates...

Only way to determine without a datasheet is to apply an AC voltage to the transformer and measure voltages at UL connections ...
  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
2a3 PP output transformer gmant123 Tubes / Valves 6 20th May 2011 10:38 AM
pp output transformer miniblok2 chopchip Tubes / Valves 4 10th August 2010 02:46 AM
Identifying output transformer leads bereanbill Tubes / Valves 7 24th April 2009 02:27 AM
Unbalacing a PP output transformer? dshortt9 Tubes / Valves 19 22nd August 2007 06:20 PM
EL84 PP output transformer for 6L6 PP class A engels Tubes / Valves 8 30th May 2007 09:45 AM

New To Site? Need Help?

All times are GMT. The time now is 05:16 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