Sweep tube suggestions - 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 19th January 2010, 08:23 PM   #1
diyAudio Member
rsumperl's Avatar
Join Date: Oct 2009
Location: Cascade, Idaho
Default Sweep tube suggestions

Greetings everyone,
I could use some suggestions on designing an amplifier with sweep tubes. I am looking for power in the 85-115 watt range. I have 750v @ 350ma and a regulated 250v @ 150ma available. I'm thinking of class AB1, or AB2 maybe even class B operation. This amplifier will be a modulator for an AM transmitter.

  Reply With Quote
Old 19th January 2010, 08:39 PM   #2
SY is offline SY  United States
diyAudio Moderator
SY's Avatar
Join Date: Oct 2002
Location: Chicagoland
Blog Entries: 2
Class B screen drive with pp parallel 17W sweeps will get you there. Go take a look at some of the schematics at davidberning.com.
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
  Reply With Quote
Old 20th January 2010, 12:31 AM   #3
diyAudio Member
Tubelab_com's Avatar
Join Date: Jul 2005
Location: West Virginia panhandle
You could just build one of these:

Posted new P-P power amp design

I get 125 watts per channel out of mine in stereo. Paralleling the two channels could generate twice the power with the appropriate load. You could build one channel using point to point construction. You don't need the power supply parts, just use what you have. Do you have a modulation transformer yet, and what are you using for the RF final amp?
Tubelab, it's 5 year mission. To explore strange new tubes, to seek out new circuits and topologies, to boldly go where no tube has gone before......
  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
Sweep tube amp...comments? Sch3mat1c Tubes / Valves 7 17th April 2013 10:33 AM
Sweep tube info/specs rsumperl Tubes / Valves 2 7th November 2009 01:59 AM
6lw6 tv sweep tube bias? m6tt Tubes / Valves 14 4th October 2007 02:26 AM
My new (old) oscilloscope won't sweep... any suggestions? steve Equipment & Tools 4 21st October 2005 02:04 AM

New To Site? Need Help?

All times are GMT. The time now is 09:53 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