A resource for Ampeg owners and
I know this is a mess right now . . . it's hosted on a different server, and it's going to take a bit, but it's all coming back, hopefully with a better layout. Don't worry.
Ampeg: The Story Behind the Sound, the long awaited history of The
Ampeg Company, is offered for sale here directly from the authors. See below or
click here for more information.
Electric Bookstore in association with Amazon.com
In keeping with my desire for a free exchange of information, I've arranged for a guestbook in hopes that visitors to this site will post new sources of parts, parts, amps, or instruments they have for sale (Ampeg or Ampeg-related only, please!), or items they are searching for (again, try to restrict them to Ampeg-related needs). Feel free to ask questions, but the quickest response from me personally will still be by email; I'm hoping, however, to be able to draw on the collective knowledge of others on the net, so if you see a question that you have the answer for, by all means answer it!
Let's see how this goes! Oh, and I'd like everyone to respect each other, so try to refrain from flaming. Thanks!
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Many write to me asking if I know of a source for a certain part or if I might
know what's wrong with your amp. I'm happy to help when I can, but please be aware
that I'm not an amp tech. I collect information and present it, but I'm not qualified
to give definitive answers regarding electronic problems. Please
look first in the Quick Questions, Quick Answers section to see if I've already
answered your question.
Also, while I'm sometimes unable to respond promptly, I do make an effort to respond to everyone. There have been a few people that I've tried to respond to, however, who didn't give me a valid email address, and my response bounced right back to me. Fortunately this happens seldom. If you wrote and haven't heard back, this might be why.
Ampeg Book Project
Ampeg: The Story Behind the Sound co-authors Gregg Hopkins and Bill
Moore are pleased to announce that the book was released by the Hal Leonard Corp.
The project has taken the authors from coast to coast for research. Interested
in purchasing a copy? The 288-page book is available directly from the authors.
Click here to learn more about the book and for ordering
It is now too late to include any more information, but the authors are always interested in unearthing more Ampeg facts. Please contact Hopkins & Moore, 728 Karlsruhe Pl., St. Louis, MO 63125; phone or fax (314) 631-5030; or email firstname.lastname@example.org.
Can You Help?
If you are familiar with manufacturers' date codes on speakers and other amplifier components, and if you would be willing to participate in a survey to compile information to correlate manufacture dates to Ampeg chassis serial numbers, then please fill out the survey form. Of interest are Ampeg amplifiers made from the company's founding in 1946 until the time that Ampeg was bought by St. Louis Music in 1986.
- February 23, 2002Added note on Schematics Page about bottomfeeders
selling Ampeg schematics on eBay that were copied from this site and are provided
here for free.
- February 23, 2002Overdue update to the Instruments page, adding more
photos and information about Burns-made Ampegs, and a photo of a rare prototype
- March 18, 2001New section on Ampeg
effects and other miscellanea.
- March 9, 2001Quick Questions really do now have some answers.
- December 20, 2000I'm finally beginning a long-overdue revamp of this
site. Sorry it's taken so long.
- August 23, 1999--I've finally added a page to assist in dating
your Ampeg amplifier. The text is reproduced with the kind permission
of the authors of Ampeg: The Story Behind the Sound.
- June 11, 1999--A new schematic from Joe, for the V-7 poweramp.
- May 10, 1999--The book is due to be released on May 28! See above for information
and to order a copy directly from Gregg and Bill.
- March 9, 1999--The book we've all been waiting for, Ampeg: The Story
Behind the Sound by Gregg Hopkins and Bill Moore should be available in
late April or early May. It will be available for order through a link on
this page. Stay tuned!
- March 9, 1999--A new schematic, this one for the B-12-NC and B-15-NC, from
- November 12, 1998--Added pages describing availability, production, and
technical details of the new AEB/AUB-2 horizontal basses built by Bruce Johnson
for Ampeg. Click the link just below.
- October 13, 1998--Bruce Johnson, proprietor of Johnson's Extremely Strange
Musical Instrument Company, has been designing the new series of horizontal
basses for Ampeg. Some of the prototypes are now available for sale. Interested?
Click here for details.
- September 25, 1998--A correction for the V4-B preamp schematic has been
posted. Joe tells me that part of the ultra low circuit on channel one was
missing, so grab it again if you've gotten it before.
- May 11, 1998--Another new schematic drawn by Joe, for the 6BK11/7868 version
of the Reverberocket, has been posted on the schematics page.
- February 11, 1998--New schematic drawn by Joe Piazza, for the Gemini 22,
has been posted on the schematics page.
- January 10, 1998--I've been threatening for a while now to add a guestbook
to this page, and now I've gone and done it.
- January 10, 1998--New Feature! The Electric Bookstore attempts to collect
many of the books dealing with collecting, repair, and maintenance of amplifiers
and guitars in one place, available for purchase. This I'm able to do in association
with respected booksellers Amazon.com by linking directly to these books from
their catalog. Amazon.com handles all aspects of fulfilling your order.
- November 20, 1997--Added link to Steve West's online Baby Bass instruction
manual, as well as a couple of AUB-1 comments on the Instruments page.
- November 20, 1997--Added link to Ned Carlson's 7027 FAQ to Parts page, along
with a couple of other changes and additions. Also added Ned's Triode Electronics
to Relevant Links page.
- October 23, 1997--Removed notice that my friend's Baby Bass is for sale.
He's decided he doesn't want to figure out how to ship it, and to sell it
locally. If you're in or near Connecticut and looking for a Baby Bass, let
- September 8, 1997--Corrected release date for Ampeg: The Complete History.
- August 25, 1997--Old update notices from before January 1, 1997 moved here
- August 25, 1997--Parts page updated to include information for contacting
Dixie Sound Works for transformer rewinding.
- August 25, 1997--Remove blink tag from Can You Help section.
- July 13, 1997--A new schematic from Joe, for the 7868 power tube version
of the SB-12 Portaflex
- June 20, 1997--Two new schematics from Joe, one for the ET-2B Super Echo
Twin and the other for the EJ-12-A Echo Jet.
- May 13, 1997--Three new schematics from Joe (who must be working overtime
on this), for the M-12, the M-12-A, and the M-15 amps.
- April 27, 1997--Having only been recently introduced to the concept of "browser-safe
palettes," I'm starting to recreate the graphics on this page with this
concept in mind. I've had a few complaints in the past about difficulty in
seeing some elements here. I just chalked it up to differences in browsers.
Hopefully keeping the color palette within the range of colors that all browsers
can display will help. Don't expect it all to be fixed at once, but if there's
something particularly bothersome, let me
know and I'll make it a priority.
- April 27, 1997--Another new schematic from Joe Piazza, this one being for
both the B-18-N and the B-15-ND. It is listed for both amps on the Schematics
page, but is the same schematic.
- April 22, 1997--A new schematic from Joe, for the R-12-A amp.
- March 24, 1997--A small correction to the V-4B preamp schematic from Joe
Piazza. Corrected drawing has been uploaded.
- March 3, 1997--Another new schematic from Joe Piazza, this time for the
- February 16, 1997--A new schematic from Joe Piazza, for the SB-12. Also,
Joe is now providing voltage charts on his own page for many of the schematics
he has provided here.
- February 16, 1997--Continuing on their quest to provide replacements for
all sorts of Ampeg parts, the rubber shock mounts that attach and isolate
a Portaflex chassis from its flip-over mounting board are now available from
Vintage Amp Restoration. Check the Parts page for more information.
- February 16, 1997--Unfortunately, we received word that the Bass Center
in Los Angeles has closed its doors, making one fewer source for Ampeg-length
strings. Happily, however, Bruce Johnson at Johnson's Extremely Strange Musical
Instrument Company is now stocking an expanded line of Ampeg-length strings
in more brands. See the Parts page for more information, and contact Bruce
to find out exactly what flavors are currently available.
- February 16, 1997--Added Vibroworld to the Relevant Links page. They carry
many amp parts, some of interest to Ampeg owners. There is also a nice discussion
of the difference between tremolo and vibrato.
- February 16, 1997--Additional notes on the Stud basses.
- January 1, 1997--Happy New Year! Added phone number on schematics page for
those needing schematics for newer (since 1986, by St. Louis Music) Ampeg
This page includes information I've collected about amplifiers and instruments, as well as some general history, of the Ampeg company. This endeavor is in no way affiliated with the current Ampeg company or its parent company, St. Louis Music, Inc. (but I hope they like it). Check out Ampeg's web page.
This page has been accessed times (plus about 40,000 or so since the counter inexplicably reset itself) since February 29, 1996
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