"Like" AX84 on facebook

Account Info
Greetings, Guest.

Reset Password
Create New Account

Browser cookies are required for these functions.

Welcome to AX84® the base camp for tube (valve) electronics hobbyists.

AX84 exists to provide:

1) A great environment to learn about music-related electronics in general. AX84 is a place where those with experience are interested in helping diligent beginners who are willing to do their homework.

2) A place where those with more experience can field their ideas to peers and get useful feedback.

3) An environment that respects the past, but is not enslaved by it. INNOVATION IS GOOD (and it didn't die in the 1950s.) There are new things under the sun every day. Move the ball forward!

Our HUGE discussion area is under 'Discussion Forum' to your left.

We are hard at work improving the site- check back often!

Recent Forum Threads
"First Power up issue with voltage"
Posted By Bret Stone on 07/24/2014
Hi Everyone,

I finally finished my P1 Extreme kit, and I powered it on for the first time. Very Exciting! Well, I had it hooked into my speaker cab for a working load, and I started to see the 6L...

Discuss this entry
"Knowledge is Power - pun intended 'cause I think I'm funny"
Posted By BC Walter on 07/24/2014
I've been interested in electricity and electronics - specifically tube amps and circuits since I was a pup. I'm mechanically inclined and have mastered all the hands-on aspects of amp building. I'm...

Discuss this entry
"Square wave testing for freq. response."
Posted By Dan Moos on 07/23/2014
Okay, so I know I can inject a square wave into the input of a gain stage and test the freq response by observing the way the wave is altered.

Is it true that I should be able to inject a square w...

Discuss this entry
"the man who played the first jazz guitar?"
Posted By Kursad K on 07/23/2014


Discuss this entry
Posted By PhilS on 07/23/2014
I know there are several cross posters between AX84 and The Amp Garage. TAG seems down for the count. Anyone know anything?
--Sign me Worried....

Discuss this entry
Like us and Find us

Subscribe to me on YouTube

Updates: Sat, Jul 26th, 2014 @ 03:04:51
Updates to pages about


have been completed.
Site News

2012-2-25: Winter is almost over. What's on your workbench?

2011-10-10: Some good discussions about LTSpice in the forums again, as well as suggestions on what all to do to a P1-eXtreme.

2011-10-10: What all can you do with a P1-extreme? check the forum

2011-10-7: Don't forget to like us on Facebook!

2011-08-11: Posted some Single-Ended Lead clips in the Classic Amp Projects->SEL section. Hundreds built but now we've got clips. Check out the archived projects section for more clips.

2010-10-22: Be sure to check out our discussion forum using the link on the left..

2009-07-01: The Treasure Fleet is on the way to Rio De La Hacha with a fortune in gold!

We're looking for media clips of recent builds... please stop by the forum and respond to the thread.

2008-10-4: Archived Projects section is functional again.

2008-9-18: RSS Feeds for the forum have been up for a while, but not advertised...
* Active Threads
* New Threads
* Recent Posts

2008-6-26: Want to participate in our discussion forums? You are welcome to read and lurk as you like. If you think you'd like to post with regularity, please sign up for an account.

AX84® is a registered trademark of Doberman Music Products, LLC. AX84.COM content may not be reproduced without the express written consent of Doberman Music Products, LLC (sales@dobermanamps.com).
For information about using the AX84® trademark, project names and designs, click here