Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki 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

Hi, looking for some info on tube amplifier design basics
Hi, looking for some info on tube amplifier design basics
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 21st October 2008, 01:58 PM   #1
rockgardenlove is offline rockgardenlove  United States
diyAudio Member
Join Date: Sep 2008
Default Hi, looking for some info on tube amplifier design basics

Hi, I did a search but my keywords turned up pretty much anything and weren't very helpful, so I apologize if this is a recurrent question; I just can't find anything.

But anyway, for a class project I need to do something that I haven't done before, in which I learn something new and find and use resources to get something real accomplished. I want to build a little tube stereo. I've built tube amps before, and I can understand them OK, but I could never design a circuit of my own. So, I want that to be my project. I want to design a tube amp from scratch. I want to learn all the associated ideas and theories and techniques, etc. (I already have alot of background knowledge and a good sense for this stuff, so I'm not quite as ambitious as I sound) and really understand how to design a tube amp.

That means I need some sources. Can anybody recommend some books or something? I've looked but I'm having a hard time telling which books are just telling you how to stick stuff together (which I can already do) and which books really say something in regards to why something is designed how it is, and how you could design it yourself. For example, these are some of the concepts I need to learn more about, and that a book would hopefully include (just to give you kind folks an idea of what I'm looking for): biasing of tubes (how it's done and why it's important), frequency response, controlling distortion, etc.

So yeah. If anybody has some suggestions that are good on those sorts of aspects and light on the 'solder this there and this here and you have an amp!' approach that'd be great.

Thank you all extensively!
  Reply With Quote
Old 21st October 2008, 02:47 PM   #2
zigzagflux is offline zigzagflux  United States
diyAudio Member
zigzagflux's Avatar
Join Date: Oct 2006
Location: Charlotte, NC
  Reply With Quote
Old 21st October 2008, 02:56 PM   #3
kstagger is offline kstagger  United States
diyAudio Member
kstagger's Avatar
Join Date: Dec 2003
Location: Grand Rapids
this is good too:

and make sure to check out the thread above:
  Reply With Quote
Old 21st October 2008, 04:21 PM   #4
kevinkr is offline kevinkr  United States
diyAudio Moderator
kevinkr's Avatar
Join Date: Sep 2004
Location: Boston, Massachusetts
Hi, looking for some info on tube amplifier design basics
I'll second zigzagflux' recommendation of Morgan Jones "Valve Amplifiers" 3rd edition.. This will provide the basic meat and potatoes you need to design your project amplifier, and in addition is a fun read.
Also highly recommended is Morgan Jone's "Building Valve Amplifiers." I have both.

Another more audio-centric source for these books can be found at AudioXpress online - as this is the sole remaining HiFi project magazine publisher in North America I recommend them strongly. (Amazon is nice, but they don't really need your bucks as badly.)

Lots of tube goodness here: http://www.audioxpress.com/bksprods/BKSTUBDES.htm Price wise you'll find they are generally competitive with Amazon, sometimes cheaper.
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." - Thomas Paine
  Reply With Quote
Old 21st October 2008, 11:57 PM   #5
rockgardenlove is offline rockgardenlove  United States
diyAudio Member
Join Date: Sep 2008
Thanks hugely guys! I'm looking at that page of PDFs posted right now, and it's great so far. AudioXpress looks like a great site, thanks alot.
If anybody else has any suggestions they'd be appreciated too.

  Reply With Quote
Old 22nd October 2008, 12:57 AM   #6
Eli Duttman is offline Eli Duttman  United States
diyAudio Member
Join Date: Apr 2004
Location: Monroe Township, NJ

The other posters have given you a good start. Very little under the sun is new, when it comes to tube circuit design. Where the creativity comes in is how you combine elements into a functioning entity.

You indicated that you are a student. Visit a library and dig up a copy of Basic Electronics for Scientists, 2nd Edition by James Brophy. That text will get you going for both tube and SS theory.

Student bankrolls being what they are, I suggest you build around either the EL84 or 6V6. The price of the requisite magnetics will not consume all of your food budget.
Eli D.
  Reply With Quote


Hi, looking for some info on tube amplifier design basicsHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tube Tester Resto Basics Steven-H Equipment & Tools 17 8th January 2010 12:10 AM
re design of a SE tube amplifier Burnedfingers Tubes / Valves 11 18th November 2007 10:20 PM
novice seaking design basics comparison gary h Multi-Way 1 20th April 2006 06:39 AM
Crossover Design Basics Super Multi-Way 10 6th July 2001 12:01 AM

New To Site? Need Help?

All times are GMT. The time now is 07:34 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio