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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
"Emulating tube rectifier sag with solid state components. "
Posted By Alva Goldbook on 01/29/2015
Has anyone ever tried doing this and had found successful results?...

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"Coolest new product at NAMM"
Posted By RickTown on 01/29/2015
[link]

It's just a teaser but damn!! I really want to see a datasheet and play with a few of these.

As Hedley Lamarr once pronounced:
"My mind is aglow with w...

Discuss this entry
"Are Siemens capacitors any good?"
Posted By Henrik Lidbjrk on 01/29/2015
I have access to an old surplus supply of components, which includes many old Siemens capacitors, exactly like these:

[link]

They're probably from...

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"Which one of these layouts do you prefer?"
Posted By Henrik Lidbjrk on 01/29/2015
Barely have I finished my 6V6 Plexi and I'm experimenting with a new build. The plan this time is to build a physically very small single ended amp based on the P1 eXtreme, with only one or two knobs,...

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"Helpful Hint - typo in PSUD 'rectifiers.txt'"
Posted By Rob Ott on 01/29/2015
I downloaded the extended file for 'rectifiers.txt' on Duncan's site and was modeling using 6AX5GT and getting an incorrect result. Looking at the file, I found Ipkr = 375A (not mA).

So, if you ar...

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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...
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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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