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Fender Fender Transformer Codes

November 30th, -0001

Mic Kaczmarczik’s Fender Transformer Codes Information

Fender Transformer Codes


Fender

Fender Transformer Codes

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 Transformer Codes
From BREME–(at)–sn.com Sat Jan 13 19:10:03 CST 1996
Article: 77538 of rec.music.makers.guitar
From: BREME–(at)–sn.com (THOMAS BREMER)
Subject: RE: Silverface Deluxe Rev Questions
Date: 13 Jan 96 08:35:11 -0800
References: <4cebhi$3k--(at)--afnews.lafayette.unocal.com>
Message-ID: <00001fb4+00005d5--(at)--sn.com>
Newsgroups: rec.music.makers.guitar
Organization: The Microsoft Network (msn.com)
Lines: 34


Heres a quick way to date Fender amps (’60-82). View the underside of
the chassis (flashlight helps alot)look for the reverb driver trans.
Its in the middle of the 6 preamp tubes with the removable shields.
You’ll find 2 rows of numbers, top set is the Fender part #, always
starts with a 022, in this case it would be 022921. The bottom set is
the date code. Works as follows, they have 6 numbers, first three is
the EIA manufacturer, ignore this. The last three tell you the year
and week. Example-606423. For a black face, this transformer would
have been made in 1964 during the 23 week (—423) The trick to this
is they don’t renumber the decades. A silverface made on the 23rd
week of 1974 will have the same date code. The only good thing about
dating amps this way is Fender never deviated-still valid today. I
use this before buying a amp always-check all four transformers-will
tell you if there has been problems along the way. Very rare to find
different year trans. in any Fender products.


If your JBL says D120F on it(look for the “f”) certainly could have
been stock. On the bottom lower corner of the grill cloth was/is a
1×2 inch “JBL” plastic logo that Fender attached. By 1968 deluxes
usually left with CTS/EMINANCE speakers (Jensen had closed down) Once
in awhile you can see the EIA code, CTS-starts with a #137-sometimes
these are under the doughnut fender speaker label. Dating system for
transformers works on the speakers also.


Fender used two kinds of silver/blue grill cloth, first version, as
with your amp, the blue stripe fades away to red, then brown and
eventually disappears. The last version had a super bright neon blue
which held its tint. Remember that Fender dealers could order any of
the silverface amps with black faceplates and regular 60’s silver
grill. ($50.00 additional at that time) Always pull on the volume
controls to see if they pull out-these were pull boosts, not labeled
on 70’s faceplates.


Bremer





 

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

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