Home Brew Amps

	Arts and Media Audio Page - try here first for all of your audio links. Although not a guitar amp site (more high end audio), there is a stack of common sense links on this page - a "must visit". (New 12/5/01).

	Aiken Amplification - Randall Aikens excellent site containing papers, patent details and detailed explanations of many amp features (New 21/11/99).
	Amp Tone, Effects Placement, and Quiet Cranked-Amp Tone. (Updated 4/2/99).
	AMPAGE - Tube amps and music electronics. Includes the tech talk BBS, a veritable oasis on amp tech knowledge. Also includes a section dedicated to homebrew amps.
	AMPTONE - Cybermonks links for getting good amp tone, guitar amps, manufacturers etc. If you are reading this page, you probably want to read the amptone one too... (Added 15/8/2000).
	Andrea Ciuffoli - This guy designs and builds OTL valve amps (Output TransformerLess). Check out his pages and prepare to have all your existing ideas blown out of the window.....
	AX84 - the build your own guitar amp project on the internet. If you want to make your own amp, and only plan to visit one site, then make sure it's this one. (Added 17/1/99).
	Bobs Music/Audio Electronics page - no shortage of links on this one!
	Brian Carling's Homebrew and Tube pages. Loads of audio and valve links, and some amateur radio stuff. (Updated 15/8/99).
	Dave Cigna's Guitar Amp Pages - these proved invaluable to me when designing the DDS-2250. Lots of good links, and spice models. Sadly, these pages are no longer online, although you can still access the vacuum tube data on this site. (altered 5/6/99).
	Digex ftp area for lots of valve info and comparisons.
	DIY Audio pages - stacks of links, and some stuff on SPICE and loudspeaker design.
	Fidelis Audio - Modifications, tube preamps, and data sheets in PDF form!
	Glass Audio - A vital magazine for die-hard tube heads...
	Guitar Player's Tube Review - Contains some history on the 6L6 and EL34, along with some comparisons of the sounds of different variants.
	K1DWU home page - More Ham Radio than guitar amps, but there is a rich set of 4500+ links to sites of interest to the constructor. A nice touch, is that the links are verified weekly. (added 19/6/2000).
	R.G. Keens pages - Guitar effects, info on amps, and the legendary Tube Amp FAQ (see Repair Links).
	Lord Valve's web site - under construction, so keep an eye on it. Now contains a Tube Amp FAQ which answers common questions - check out the Repair Links page for more details.
	LXH2 contains circuit diagrams (solid state) that allow amplifier and speaker simulators to be made.
	Mattijs de Vries tube page, includes lots of links and an interesting class A amplifier project based on 811's. He also plans to make a push-pull amp using 807's someday (when it's done, I'll copy it to use up my own stock of 807's!).
	Mic Kaczmarczik has put together various clippings from UseNet on common questions - this is an excellent resource.
	Nate's Homebrew tube amp corner - another site with lots of info for valve amp builders.
	Norman Koren audio page Articles on SPICE vacuum tube modeling and finding SPICE parameters. High-end SPICE-based preamplifier and power amplifier designs. (Added 28/8/2001).
	Real McCoy audio - Although aimed at audiophile applications, this page contains some interesting articles and details for suppliers for tubes and transformers (Andre tells me there is more more guitar stuff coming soon).
	Sal Trentino's Amp Tips - Guidelines on extending valve amplifier life and safe usage.
	Sofia - Italian organisation marketing a computer controlled curve tracer for checking valves out. They also include sample outputs from a number of valves which may prove helpful.
	Summit Amps - Carl Zwengels pages, with schematics and tech info for guitar amps. (Added 30/7/98)
	The Vacuum Tube FAQ by Henry Pasternack - Nice concise document on how valves actually work.
	The Vacuum Tube Page has details on rare valves, along with useful supplier links for transformers and the like.
	Tom Loredo's Electronic Bookmarks - A massive list of manufacturers, suppliers, and audio pages. Lots on CAD and simulators.
	Tone Heaven - Vintage British guitar amps and Hammond organs direct from the UK, also Selmer, VOX, Marshall, Hiwatt and Orange.
	Triode Electronics - Ned Carlson is famous on rec.audio.tubes for giving sound, practical advice. Check out the Triode website with lots of technical info and data sheets.
	Tubes V Transistors - The definitive document by Russell Hamm.
	Vacuum Tube Valley contains tube information and reviews along with interesting historical details of both the 6L6 and EL34.
	VT52 - Jim de Kort's site has lots of stuff for amp builders, including projects, tube data, and tubes for sale.