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c

info    updated 13/8/2008...please email corrections/info

Cage

A F (Pete) Cage, Damascus, MD

Carl Martin

"Manufactured since 1993
We use serial numbers but one has to mail in to get the exact date, which we have." [Source: Soren, Carl Martin, email 24/3/2008]

search at http://www.vintageguitar.com

Reviews http://reviews.harmony-central.com/reviews/Effects/brand/Carl+Martin

Carlsbro

...all our equipment was issued with a serial number which was stamped into the metal of the early valve amps and then a self-adhesive number was applied to the back of all subsiquent units. ( from about 1974 the transistorised units also had a separate F/P number inside the front panel to identify the model ).
There is no "date code system" to the serial numbers except for the period 1988 to 2000 where the first two digits were the year of manufacture ( to within about 6 months ).
All the serial numbers going back to 1973 are held in an old archive of manually written books which are too numerous to archive into an electronic file, so any enquiries about dates etc need a search through them which can be somewhat laborious as you can imagine.
I wish you luck with your project and if you find yourself with a couple of free years on your hands, you can catalogue our archive! LOL [source: Peter Longley, Technical Advisor, Carlsbro Electronics Limited, email 12/2/2007]

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Carlsbro

Carol-Ann Amplification

Alan Phillips is the owner of Carol-Ann Custom Amplifiers, LLC. a full service custom boutique tube amplifier builder located in North Andover, MA, on Boston's North Shore.

"The business was formed in to a fulltime LLC in 2006, though there are many amps out there that I've built since 1985, only amps built after 2002 bearing the Carol-Ann name. In the early days I built a few solid state PA power
amps as well as solid state and tube guitar amps. Most of the early guitar amps were Marshall derivatives.
Dating Carol-Ann amps
Serial Numbers take a 6 digit form xxyyzz, where xx is the year, yy is the month, zz is the production number for that month.
Limited edition amps may have a different numbering scheme that makes it often impossible to tell the production date.
Some amps may not have had a serial number written on them simply because that step was omitted during a very busy production run. If any owners contact you with this scenerio, I can provide the correct number for their amp.

The serial number is either engraved or written on in black, red, silver or gold, It is always located on the back panel.

Recently I've started writing the number inside the chassis in gold pen too.

A couple of amps have cryptic messages inside them. This was  the case when I knew a customer who was buying the amp was closely associated with another Company and the amp would very likely be reverse engineered. I don't bother about this any more. It is what it is and I've chilled out about it.

Contrary to common rumour, I don't goop production amps at all. With the exception of one amp that was fully gooped with Military spec encapsulating compound, I use a material that is an industrial black hot glue to protect the circuit from physical abuse and to help shield sensitive areas from induced environmental noises such as stage lights. This material can be easily removed for servicing with the use of an industrial hot air gun to soften it. I guess it does prevent the passive onlooker from reverse engineering or from taking meaningful photos of the circuits, but if someone wants to know what's going on, removing the material is real easy.

The name came from my sweet Italian wife Carol-Ann. I built an amp for myself in 2002 when I just moved to the States, right after we got married. To be honest, we couldn't really afford it at the time and the way I got around Carol was by naming the amp after her. I figured it would make it more difficult for her to be mad at me." [Source: Alan Phillips, email 12/8/2008]

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Carol-Ann+Custom+Amplification

Carr Amps

" We started Fall 1998. All amps have a serial number on the chassis and there is a tube chart stuck to the inside wall of the cab that has the serial number too. Most of the amps are dated on the tube chard and all are dated inside the chassis." [Source: Steve Carr, email 21/3/2008]

http://en.wikipedia.org/wiki/Carr_Amplifiers

search at http://www.vintageguitar.com

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Carr

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Carr+Amplifiers

Carvin

http://www.carvinmuseum.com/whatmodelguitaramp.html

http://carvin.electricshockmusic.com/newsite/

Carvin catalogs and ads http://www.carvinmuseum.com/otherads.html

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Carvin

Carvin forum http://www.carvinbbs.com/

Celestion

Celestion speakers: At this link go to the drop down and go to "Chassis Date Secrets"

http://professional.celestion.com/guitar/features/drdecibel/index.asp

Identifying Greenbacks: http://www.thegearpage.net/board/showthread.php?t=67646&highlight=dating

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Celestion

Ceriatone

Kits

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/CeriaTone

CMI (Cleartone Musical Instruments)

Another production name of Marshall. Made Birmingham, England mainly between 1976-77. [Source; Blue Book of Guitar Amplifiers 2nd Ed]

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/CMI+Electronics

Collins Amplification

"Manufacture started in  2002, Oklahoma City Oklahoma
Tube chart inside cabinet lists date of manufacture, serial no. and who it was made for." [Source: Collins Amps, email 12/8/2008 ]
Image reproduced with permission Collins Amplification:

Colorsound

http://www.fetishguitars.com/mrt/index.html

http://www.jacquesstompboxes.com/page4.html

http://www.geocities.com/stompbox2001/newfinds.htm#swell

http://www.vintageguitars.org.uk/effects.php

Reviews http://reviews.harmony-central.com/reviews/Effects/brand/Colorsound

Companion

Catalog http://tix.gozaru.jp/other.html

Cornford Amps

"1997 was the 1st Cornfords, and we have all of the dates at the office." [Source: Cornford amps, MySpace message 9/4/2008]

http://www.myspace.com/cornfordamps

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Cornford

Coron

http://www.jacquesstompboxes.com/page3.html

http://www.locobox.com/coron.html

http://tix.gozaru.jp/stompbox.html

review http://reviews.harmony-central.com/reviews/Effects/brand/Coron

Cosmosound

http://www.geocities.com/stompbox2001/page2.html

Crate

Produced since 1979. Early solid state amps looked like a crate - hence the name.

"Unfortunately, there is no [dating] equivalent for Crate.  However, there were only two serial number systems in place for Crate; pre 1988, and post 1988.

 The post 88 serial numbers coincide with the Ampeg system, but the pre 88 system is a little less organized." [Source: Scott Noel Patterson, LOUD Technologies, email 27/3/2008]

 http://en.wikipedia.org/wiki/Crate_Amplifiers

Owners manuals http://www.crateamps.com/html/manuals.cfm

Reviews http://reviews.harmony-central.com/reviews/Guitar+Amp/brand/Crate

see Ampeg