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The Tube amp Library of information

Click the link above for Tube amp info, Tube amp schematics, Tube amplifier circuit board building information,
tube projects, Amp mods, Tube amp transformer diagrams, Photo's, Sound clips.
There are hundreds of pages of Tube amp information on my library page.



Please visit my Tube Amplifier Forum

Here's the place you can go to ask tube amplifier questions.
You will find a large community of friendly tube amp builders at the link above.
This is the place to go for tube amp building help and information.


You can scroll through the images below using the Image scroll controls. You can also use the Left and Right arrow keys on your keyboard.

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My Tube amp parts catalog is on www.Hoffmanamps.com
You can go here to browse my tube amp parts catalog, or use the scrolling image browser above.


Hi, my name is Doug Hoffman
The EL34, in EL34 World, refers to my alias, which I have been using since 1999.
I first used EL34 as my gaming name when playing Quake 3 at LAN parties and on the internet.
I had to come up with some sort of alias and EL34 is what I came up with. :)
A EL34 is also a very popular power tube for many amplifiers.

I own several web sites that contain information about vacuum tube Guitar tube amps.
Hoffman Amplifiers is my Web store site for tube amplifier parts and SSC P7 LED bike light parts.
EL34World is my Main information site for many different subjects.
Click on the big button down below to go to my Web store on www.hoffmanamps.com


Check out some of my other hobbies and projects

Dallas one wire weather station

X10 Home automation

My veggie garden

My CNC machine and CNC projects

My Sterling Engine experiments

My Solar Greenhouse experiment

My Bikes

DIY SSC P7 Bike Lights and Mounts

GPS stuff

My amps and guitars

Misc. Sound setup and recording info
Behringer FCB1010 - Guitar Rig - Windows mixer - Mixcraft

Sound Clips page
Sound clips and tunes of all types

Guitar Neck jig tool used for fret leveling

My USB foot controller experiment
Hack a USB keyboard to be able to control software with your feet


Thank you for visiting my web site, you are visitor #



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Home - Ordering Information - Returning parts - Hoffman Board manufacturers
Links - Shipping Info/policy - E-mail Me - Amplifier Service Technicians - About HoffmanAmps

The Tube amp Library of information
Click the link above for Tube amp info, Schematics, Board building information, Projects, Mods, Transformer diagrams, Photo's, Sound clips.
There are hundreds of pages of Tube amp information on my library page.

Please visit my Tube Amplifier Forum
Here's the place you can go to ask tube amplifier questions.
You will find a large community of friendly amp builders at the link above.