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Interesting sites and places on and off the net, concerning tube amps, their use, their sound, and their maintenance.


Information and Schematics
on the net

Hammond Mfg.
on the net
Yorkville Sound Ltd.
on the net
Vintage Guitar Site
on the net
on and off the net
Tube suppliers
amps by parts

Information and Schematics
on the net
this page has a lot of info on Pete Traynor and his amplifiers:

BackStage (Joe Piazza's WorldWide Web Page)
Found a nicely drawn schematic of a Traynor Model YGM-4 Studio Mate at:

There was a very nice image of a 1974 Yorkville Traynor YGM-4 Studio Mate at:

Information about tube amps (Fender, Ampeg, in general); mods, maintenance etc. at:

Musical Instrument Tube Amp Building, Maintaining and Modifying FAQ
Information on building or re-building hi-fi equipment, as well as it was originally intended, of musical instrument amplifiers:

Guitar Amplifier Tone and Effects Placement
About amps, and all issues around:

Duncan's Amp Pages
Featuring links to schematics, tube and speaker data, software, links to circuits etc.:

Jazz Guitar Pages - Tube Amps
Amps for Jazz, advantages and disadvantages of tube amps, and maintenance:

Traynor Tweaks
a site dedicated to the modification of Traynor tube amps

Schematics at Schematic Heaven
Schematic Heaven has a new 'Unlimited Bandwidth' site that hosts a MUCH larger compliment of schematics than any other FREE download site on the Internet. New schematics are continually added. To date [April, 2006], the site has well over 1500 unique Amplifier & Effect schematics.

Schematics at Prowess Amplifiers
Tons of tube amp schematics (taken from

Lots of tube amp schematics

YBA-1 Chronicles
The evolution of these amps

The Tube Amp Book
By Aspen Pittman

The Amp Book
By Donald Brosnac

Inside Fender and Marshall Tube Amps
By JC Maillet, easily one of the most knowledgeable Traynor and Garnet amp fans I know.
Check it out at
I've spent a few hours pouring over the contents and am fascinated by his Fender and Marshall mod ideas as well as the deep analysis of their circuits. Great stuff!
It's amazing! JC really puts my local tech to shame...

Tube Amp Biasing
Kevin O'Connor explains all this in much more detail in his books - particularly The Ultimate Tone Volume 2. You can get this book and others from

Hammond Mfg.
on the net

Yorkville Sound Ltd.
On the net

Yorkville Sound
550 Granite Court
Pickering, Ontario
Canada L1W3Y8
Phone: (905)837-8481
Fax: (905)839-5776

Yorkville Sound Inc.
4625 Witmer Industrial Estate
Niagara Falls, NY
USA 14305
Phone: (716)297-2920
Fax: (719)297-3689

Outside Canada & USA Yorkville's manufactured products are represented by independent distribution companies. Yorkville has current representation in over 30 countries. Check out our Distributor Listing [at] for more information on the distribution of Yorkville's products outside Canada and the United States.

On the net
There's a fairly quiet email list about Traynor amps, set up by Aaron Turner.
Running under OneList now, you can take a look at it at

You may also post a message to the list at
subscribe to the list at
or contact the list admin at

Vintage Guitar Site
on the net

on and off the net

Song Bird Music
801 Queen Street West
Toronto Ontario M6J 1G1
Phone: (888) 733-4777
Phone: (416) 504-7664

Long & McQuade Musical Instruments
(The ancestral home of Traynor amps. The downtown Toronto store:)
925 Bloor St. W.
Toronto, Ontario
M6H 1L5
Phone: (416) 588-7886
Fax: (416) 532-9708

Long & McQuade Musical Instruments
2777 Steeles Ave. W. (at Keele)
North York, Ontario
M3J 3K5
Phone: (416) 663-8612

Long & McQuade Musical Instruments
1133 Markham Road (at Ellesmere)
Scarborough, Ontario
M1H 2Y5
Phone: (416) 439-8001

Long & McQuade Musical Instruments
380 Simcoe St. S.
Oshawa, Ontario
L1H 4J3
Tel: (905) 434-1612
Email: l&

Long & McQuade Musical Instruments
Kingspoint Plaza
370 Main Street North
Brampton, Ontario
L6V 4A4
Phone: (905) 450-4334

Encore Music
(probably the richest source)
40 Danforth Rd.

Richmond Trading Post
151 Chruch St.


Song Bird Music
388 Gladstone Avenue
Ottawa Ontario K2P 0Z1
Phone 888.733.4999 613.594.5323

Used Sound
(My favourite place to buy Traynors, a small grubby store - often crowded and stuffed with old equipment - but occasionally there are bargains.)
226 Preston
Ottawa, ON
K1R 7R2
Phone: (613) 594-5449


Ed' Music
(had a few the last time I was there)


Guitar Clinic
The Guitar Clinic in Hamilton [that used to advertise Traynors for sale] has closed it's doors to the public. The concentrate on making 'F' basses and Hammertone guitars exclusively. [Feb 2003]

Cornwall Ontario

Gilles Grignon's site at Rainbow Music
([...] A source for old Traynors [...].)

Andy Fuchs' Custom Modifications
Fuchs Audio Technology designs, manufactures, and modifies tube musical instrument and audiophile amplifiers.

Tube supplier
Angela Instruments at

Postal address:
Angela Instruments
10830 Guilford Road, Suite 309
Annapolis Junction, MD 20701

Phone: (301) 725-0451
Fax: (301) 725-8823
Email: Steve@Angela.COM

Triode Electronics at

Postal address:
Triode Electronics Inc.
2225 W Roscoe St.
Chicago IL 60618 USA

Phone: 773-871-7459
Fax: [773-]871-7938
Email: (tube and parts sales)
Email: (new and used audio equipment sales)

Antique Electronic Supply at

Postal address:
Antique Electronic Supply
6221 S Maple Avenue
Tempe, AZ 85283

Phone: 602-820-5411
Fax: 800-706-6789 (U.S. and Canada) or 602-820-4643

The Parts Connection at

Svetlana EL-509/6KG6 Tubes (Russian 6pi45c) for [US] $13.50 each at [May 2002]

The Tube Store
There's an online place called that looks good, is also based in Hamilton, but is a mail order tube store that deals world wide... selection and prices look very good!

amps by parts
Ned Carlson at Triode Electronics
A list of commonly seen EIA codes seen on US made transformers, speakers, and other parts, with a explanation of date codes.

Vintage Guitar Info
dating vintage guitars and amps by source-date code

Weber Vintage Sound Technology
there is also a little info at the Weber Vintage Sound Technology homepage at

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Velvet Black, Copyright © 1998-2013 by Daniel Cermak-Sassenrath
This is no official Yorkville Sound Ltd. site, and I am not affiliated with the company in any way.