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Fender Fender Amp Dating

November 30th, -0001

Mic Kaczmarczik’s Fender Amp Dating Information

Fender Amp Dating


Fender

Fender Amp Dating

This directory contains USENET articles Mic has saved about guitars, equipment, pickup, techniques, players, and so on. Mic has graciously granted permission to post the stuff on the JT30 page on the off chance that it might be useful in the context of Blues Harmonica. Mic is not responsible for the content, just the collection.

Fender

Fender Amp Dating
From Keith_M._Danby%MAGI–(at)–agic.ca Tue Oct 4 22:45:42 CDT 1994
Article: 25387 of alt.guitar
From: Keith_M._Danby%MAGI–(at)–agic.ca (Keith M. Danby)
Reply-To: Keith_M._Danby%MAGI–(at)–agic.ca
Newsgroups: alt.guitar
Distribution: world
Subject: Re: How old is my Guitar amp?
Date: 04 Oct 1994 01:57:09 GMT
Message-ID: <1900933118.982563--(at)--agic.ca>
Organization: Magic Online Services Toronto Inc.
Lines: 42


Dating Pre-CBS Fender Amplifiers


Fender amps made after 1953 had a date code stamped on the tube chart located
on the inside of the cabinet of self-contained amps and inside the amp head
on piggy-back models. Sometimes the factory stamped the tube chart code onto
the amp chassis too. Look for two small letters in rubber-stamped ink but be
sure not to confuse the date code with the production number, the model
number, or the serial number.


The first letter indicates the year of manufacture, starting with “A” = 1951,
through to “O” = 1965. The second letter is the month of manufacture,
starting with “A” = January, through to “L” = December. For some odd reason,
“G” is not included in the month coding.


Example:
If your amp has an ink-stamped code of “GD”, is would have been manufactured
April, 1957


Fender had another date code system for early-60’s speakers and amp chassis.
If the speaker is a Jensen (most pre-CBS Fenders used either Jenson or Oxford
speakers), the code stamped onto the speaker would start with 220 (Jensen’s
company code) and then followed by a three digit code. The first digit after
Jenson’s company code indicates the year of manufacture starting 1951. The
second two digits indicated the week of manufacture. So a speaker stamped
220122 would indicate it’s manufacture of the 22nd week of 1951.


If the speaker is an Oxford (Fender used Jenson and Oxford speakers for
Pre-CBS amps), Oxford company code was 465 and the last three digits were
coded in the same way as the Jensons.


One thing to keep in mind is that both companies repeated the same numbering
every decade. So you’d have to guess whether the speaker was made in 1951 or
1961. A “2” (manufacture in 1952) could mean the speaker was made in 1952 or
1962.


Fender also used another code system for early-60’s speakers amp chassis too.
You may see something like “AB 0763″ on a speaker. It’s easy to see that
this would be the 7th week of 1963.


Speakers are more confusing to date than the amps. Also, the speaker date
should be earlier than the amp date. If not, that tells you that the speaker
may not be the original.





 

Index:

1974 prices
3 Spring Reverb Tanks
3 Wire Cord installation
5R4 not enough current
5V4 in BF Deluxe
6550s in Super
68 Princeton Rectifier
68 Super Reverb
6L6 in Champ Again
6L6 in Deluxe LV
6L6 in Deluxe Reverb
6SC7 to 12AX7
6V6 In 6L6 Amp Test
6V6 in Showman Test
6V6s in Super
AA vs AB 763
AA763 vs AB763
Alternative Switches
Bad Fender Mods
Bandmaster Cathode Bias
Bassman 10 info
Bassman Head Running 2ohms
Beef Up Tweed Champ
Birth of Fender Reverb
Blackface Cabinet Dates
Blackface Pro
Blame UL
Blues Deluxe review
Brown Bassman Transformers
Brownface Trem Pulse
Brownface Tremolux Cabinets
CBS Deluxe Reverb Changes
Champ 8ohms
Champ problems
Champ speakers
Champ Transformers
Choke Specs
Clean Ckt Board
Concert Head Footswitch
Dead Amp Checkout
Deluxe Cathode Bias Mod
Deluxe reissue vs original
Deluxe Tweed vs BF
Design Eras
Detailed AB568 test
diy
Dr Z Harp Amp Mods
Early Blackfacing
Ed Jahns Xformers
Eyelet Board Problems
Faceplate Restoration
Factory Mistakes
Fender 6V6 Overvoltage
Fender AA568 circuit
Fender Alternative Footswitches
Fender Amp Covering
Fender Amp Dating
Fender amp tremolo
Fender Amp Tremolos
Fender bad Supers
Fender BF Bassman mods
Fender BF SF changes
Fender Bias Pot Failures
Fender Bias Schemes
Fender Blackface
Fender Blues Deluxe Settings
Fender brownface topology
Fender Cap Replacements
Fender Channel Coupling Caps
Fender Combo Reverb trick
Fender Concert Reissue
Fender Concert Tremolo
Fender Correct Tubes
Fender coupling caps
Fender decrease reverb mix
Fender Deluxe Power Trans
Fender Deluxe reissue
Fender diodes
Fender Ext Spkr Jack
Fender Grill Cloth
Fender ID circuits
Fender Input Jacks
Fender Midrange Knob
Fender neg feedback
Fender Normal Channel
Fender replacement parts
Fender Reverb Both Channels
Fender Reverb FX loop
Fender Reverb Reissue
Fender Reverb Transformer
Fender RI Reverb mods
Fender RI Reverb Tube
Fender RI Reverb Tweaks
Fender SF vs BF
Fender Silverface facts
Fender speaker recs
Fender Super 60 price
Fender Super pricing
Fender SuperChamps
Fender The Twin
Fender tone circuit boost
Fender Tone Circuit
Fender Tone Circuits
Fender Transformer Codes
Fender Treble Caps
Fender Tube Chart Dates
Fender Vib Rev Pedal
Fender vibrato pot
Fender Vibrato Ticking
Fender Vibro King circuit
Fender Vibrolux RI review
Fender VibroVerb
Fender Was Dumb
fender
Footswitch specs
Grid Blocking
Homebrew Vibroverb
Invert normal channel
Knob Changes
More Pro Reverb
Narrow Deluxe Chassis
No 5R4s
Normal Channel Delay
PA 100
Pot Tapers
Princeton Adjustable Bias
Princeton driver mods
Princeton Mods
Princeton PI Headroom
Princeton PI Heater Cathode v
Princeton PI Mod Layout
Princeton Reverb Power
Princeton Reverb Tweaks
Princeton tone bypass
Princeton Vs Deluxe
Princeton with 5881s
Pro Reverb baffles
Pro Reverb History
Pro Reverb Orig Speakers
Pro Reverb Parts
Pro Reverb Questions
Pro Reverb Speakers
Pro with a 15
Proper Blackfacing
Pull Boost Failures
Red Knob Twin problems
Reduce Champ Screen Voltage
Replacing Glued Baffles
Restoring Grille Cloth
Reverb Amp Effects Loop
Reverb Fixes
Reverb Pan Bottom
Reverb Trans Specs
Reverb Unit Mods Page
RI Bassman Mods
Rivera Designed Fenders
Scrape Vibrato Pot
Screen Resistors
SF Deluxe mods
SF Deluxe Reverb Questions
SF Reverb Cathode Resistor
SF Vibrolux Changes
Shielding Plate Problems
Showman vs Twin
Silverface Changes
Silverface Pro Reverbs
Small Trannys Sometimes Better
Super Champ 6C10
Super Molestation
Super Too Much Bass
Tolex Repairs
Tremolo Tick Tips
Tweed Champ Filter Caps
Tweed Deluxe Bypass Cap
Tweed Deluxe Transformers
Tweed Twins
Twin Reverb History
Twin Reverb overdrive
Twin Reverb Variants
Vibrato Click Fixes
Vibrato Tick Svc Bltn 9
Vibro King fat switch
Vibro King info
Vibroverb tone
What is Hi Pot
What Makes Fender Sound
What Was Ice Cube
Why 68K Input Resistors
Why No More Cloth Wire
Why Silverface Changes

micK pages
Amps
Caps
Circuits
D-I-Y
Effects
Fender
Guitars
Q & A
Speakers
Tubes
Vendors

 

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Mic Kaczmarczik's USENET Articles
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