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Welcome

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
"Opinions wanted: Low wattage amp vs attenuator"
Posted By Martin Schrder on 03/29/2015
This is my first ever post here so please forgive and instruct me if I break any etiquette rules.
Also - this might not be the most well-structured of posts because I am confused and wish to ask a mi...

Discuss this entry
"First Draft Layout for HO build (PCB)"
Posted By Ben Sykora on 03/28/2015
PCB Artist library files are here:
[link]

PCB Artist schematic and layout files are here:
[link]

Discuss this entry
"Class AB2. If the Grids want current, they can have it."
Posted By CChurchill on 03/27/2015
There are many ways to tackle the issues of blocking/crossover distortion in Push Pull output stages, particularly in cathode bias configuration. I like the zener assisted circuit Paul Ruby expanded o...

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"Would like feedback on clean preamp idea"
Posted By Darren Porter on 03/27/2015
If anyone would be so kind to take the time and look over my idea and give some feedback, I would really appreciate it.

I'd like to hear what others think before I take the time to actually build i...

Discuss this entry
"Silly Jack Question"
Posted By turtle441 on 03/27/2015
Seems like a simple question, but does it matter if you use switched vs non-switching jacks for the output speaker jacks? I've got some extra cliff-style switching jacks sitting around, didn't want t...

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Updates: Sun, Mar 29th, 2015 @ 08:41:05
Updates to pages about

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Site News

2014-10-21: Be sure to check out our discussion forum using the link on the left..


2014-10-20: The Treasure Fleet is on the way to Rio De La Hacha with a fortune in gold!


20014-10-20:
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.


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