Allen Chassis (as used in current Allen Amp models)
Stainless-steel angled-front chassis with TIG welded corners and a 7/16" rear mounting flange. 3 octal socket holes and 4 9-pin holes on CHS and CHM. Five 9-pin holes on CHL.
Eyelet boards, transformers and cabinets are available to go with these chassis. NO GRAPHICS PLATES SUPPLIED.
18-1/4"W by 7"D by 1-3/4" H. Uses 4" chassis straps. Fits a "PR" cabinet. Outside capacitor bank cover and eyelet board available for $40. (3 x 24 main eyelet board with mounting
standoffs available for $35)
20-5/8" W by 8"D by 1-3/4"H. Uses 5" chassis straps. (27 x 3 eyelet board with mounting standoffs available for $40)
22-1/2"W by 8"D by 1-3./4"H. Uses 5"chassis straps. (33 x 3 eyelet board with mounting standoffs available for $50)
NEW! - 15-1/4" wide stainless-steel MINI PROJECT CHASSIS is 6" deep and 1-3/4" tall. Features (3) 9-pin, (2) octal and optional
3rd octal or can capacitor hole. (2) inputs with (6) potentiometer holes on front along with a combination toggle/slide switch hole and pilot light hole on
front. (3) 3/8" jack holes on back plus 1/2" switch/fuse holder hole and 1/4" bias jack holes. Accepts Allen TP18 or TP25 power transformer and the TO8C, TO10B, TO11C,
TO22, TO26 and TO30D output transformer. Also accepts a reverb transformer, a 25W aluminum cased cathode resistor, a fuse holder and a power cord strain relief bushing.
3x15 eyelet board, 3x21 eyelet board, head and 1x10 combo cabinets available.
(NOTE: components shown in chassis images are not included and are for illustration only)
Mini Project Starter Kit (
click for details)
Common Amp Parts Package
Common Amp Parts Package. Upgrade your "not Allen" kit with these premium components or start your next homebrew project! Includes (3) 1" octal sockets, (3) molded type 9-pin
sockets with shiny steel shield covers, (4) Switchcraft shorting 1/4" jacks, (2) Carling power switches, (1) Carling grounding switch (can be used as an impedance switch), (1) Littlefuse fuse
holder with two fuses of your choice, 12 foot power cord with strain relief bushing, USA style pilot lamp assembly with #47 bulb and red jeweled lens and a 2 foot speaker cable with right angle plug.
Stainless steel hardware is provided for the sockets and stainless steel lock washers for the jacks and switches. Upgrade capacitors, pots and tubes are listed below. Save $10 over the individual
prices for these components!
NEW! Compact, low-cost 450V 105 degree C axial-lead electrolytics with low ESR!
F&T 22uf 500V compact, low ESR axial 1-1/2" x 11/16"
F&T 47uf 500V compact, low ESR axial 1-7/16" x 13/16"
F&T 100uf 450V compact, low ESR axial 1-15/16" x 15/16"
F&T 220uf 300V compact, low ESR axial 1-15/16" x 15/16"
22uf 450V Samwha low ESR 105C axial 5/8"D by 1-5/8"L
33uf 450V GSC low ESR 105C axial 5/8"D by 1-7/16"L
47uf 450V GSC low ESR 105C axial 23/32"D by 1-7/16"L
68uf 450V GSC low ESR 105C axial 23/32"D by 1-5/8"L
100uf 450V GSC low ESR 105C axial 1"D by 1-3/4"L
Nichicon 10uf 450V low ESR axial 13x26mm (better than 8uf Atom)
Nichicon 22uf 100V low ESR cathode bypass axial 8x16mm
Nichicon 100uf 100V low ESR bias supply axial 10x26mm
Mallory M150 Tone Capacitor Assortment for most Fenders. (6) .1uf, (4) .047uf, (6) .022uf, (1) .01uf, (1) .0033uf, (1) .001uf, (1) .0047uf
Cornell Dubilier Silver Mica Capacitor Assortment - (2) 120pf, (2) 250pf, (2) 500pf
Power Tubes - matched by plate current within 5mA
Tung-Sol 6V6GT power tube.
$50 matched pair
Tung-Sol 6L6GC STR power tubes.
$50 matched pair
Preamp Tubes - screened for low noise and microphonics
Electro Harmonix 12AX7
Note - 30 day warranty on tubes.
White ceramic 8-pin with retaining clip, screws fits Fender 1" holes.
9-pin Belton molded Micalex socket with sturdy aluminum shield cover
Medium Chassis Straps with bolts and nuts
Long Chassis Straps with bolts and nuts
Set of (4) Chrome Corners with lip and S.S. screws
Glides (feet) set of 4 - metal cup with rubber insert, screw
PEC 2W mil-spec potentiometer, 1M ohm audio taper, 3/8" shaft
PEC 2W mil-spec potentiometer, 250K ohm audio taper, 3/8" shaft
PEC 2W mil-spec potentiometer, 100K ohm linear taper, 3/8" shaft
5K linear (Alpha 3/8" bushing solid metal shaft damped Potentiometer with lock washer)
10K linear (Alpha 8mm bushing solid metal shaft damped Potentiometer with lock washer)
25K linear (Alpha 3/8" bushing solid metal shaft damped Potentiometer with lock washer)
250K linear (Alpha 3/8" bushing solid metal shaft damped Potentiometer with lock washer)
10K audio (Alpha 3/8" bushing solid metal shaft damped Potentiometer with lock washer)
100K audio (Alpha 3/8" bushing solid metal shaft damped Potentiometer with lock washer)
250Kaudio (Alpha 3/8" bushing solid metal shaft damped Potentiometer with lock washer)
1 meg audio (Alpha 3/8" bushing solid metal shaft damped Potentiometer with lock washer)
Black Chicken Head Knob
Cream Chicken Head Knob
Fender Black Skirted Knob (1-10)
Fender Cream Barrel Knob
Fender Brown Barrel Knob
Black Barrel Knob with set screw
Switchcraft shorting type input/output 1/4" Jack with lock washer
Switchcraft chassis mount RCA Jack for reverb/vibrato with lock washer
Insulated Switchcraft 1/4" shorting jack for 7/16" hole
Tip Jacks for bias measurement (pair)
2.5" x 12" G10 Eyelet Board (24 columns or 3 eyelets) with hardware
Carling SPST Power/Standby Switch with lock washer
Carling SPDT Grounding Switch with lock washer
DPDT Slide Bright Switch
Carling 3-position progressive toggle switch (OFF-STANDBY-PLAY)
Pilot Light Assembly / Fuse Holder
Pilot Light holder with #47 bulb and red jewel
Littelfuse Fuse Holder with (2) slow blow fuses - 1A, 1.5A, 2A or 2.5A
12' heavy black grounded Power Cord with strain relief bushing
Accutronics 9AB2C1B medium-delay 3-spring Reverb Tank
NEW! - Tuki padded reverb tank bag
3 foot molded gray right angle Reverb Cable
NEW! - Special order 4 foot molded-type reverb cables with right-angle RCA plugs on each end. These are like the 3 foot and 5 foot cables from Mouser. One 3 foot and one 4 foot cable is ideal for small combo amps while one 4 foot and one 5 foot cable is ideal for 4x10 combo amps. Quantity pricing is available on this custom cable.
5 foot molded gray right angle Reverb Cable
10' of each - red/white/blue/brown/yellow 22ga Solid Tinned PVC Wire green 20ga
24" heavy duty Speaker Cable with right angle plug to black/white tinned leads
New line of
transformers are perfect for repairs and
replacements of most of the more popular vintage Fender amplifiers or for your own custom-built projects. Period correct voltages and equal or better current ratings. Direct bolt-in replacements with no drilling necessary.
Improved features such as Unistrand pre-tinned wiring for easy soldering, center-tapped heater windings on power transformers for convenient grounding (without the need for 100 ohm grounding resistors at the pilot light) and
internal hum shield brought out to a lead for grounding power transformers to reduce hum emissions. Allen RITE-IRON
Power (120V 60hz only)
NEW! TP24 power transformer requires a full-wave-bridge type solid-state rectifier. It does not support a tube rectifier. It is rated 120V to 280V at 200mA with a
6.3V center-tapped heater winding rated 4A. It will support a power supply rated approximately 365V DC at 150mA DC. This is sufficient for a pair of EL34s in fixed bias or a pair of 6L6s in cathode
bias or a single ended amp using a big 6550/KT88 power tube - plus 3 or 4 preamp tubes. It also has a pair of brown leads rated 20V at 100mA. This makes it a great bolt-in upgrade for the Blues Jr.
(same color code leads, too) where a little higher B+ voltage and better voltage regulation are desired for more headroom or where 6L6/EL34 power tubes are to be installed for a more powerful amp.
2" by 2-1/2" mounting centers means it will fit a Champ or Princeton chassis. 2-5/8" tall above mounting surface. 3.8lbs. 10" Unistrand pretinned leads. A great project transformer that is compact
and powerful and produces a more reasonable B+ voltage making it suitable for many cathode biased, single-ended and EL84 based circuits. Made in the U.S.A!
Upgrade Power Transformer for BF/SF Champ, VibroChamp, Bronco, and
Princeton. 310V-0-310V @ 150ma, 6.3V at 4.5A, 5V at 2A. 50V bias tap, center-tapped heater winding and internal hum shield brought out to a lead for grounding. 2" by 2-1/2" mounting centers, 5.1lbs. Unit is approximately 1" taller than a stock transformer. Supports the use of both 6L6 and EL34 power tubes (with proper socket wiring). Now featuring M-6 grain oriented lamination steel for cooler operation.
NEW! TP35 power transformer replaces the Vibrolux Reverb, Tremolux, DRRI and 80s Concert PT. 320V-0-320V at 180mA, 6.3VCT at 5A and 5V at 3A. As used in the current Accomplice and Brown Sugar amps. Supports the use of EL34s with proper socket wiring. Quality USA made paper stick-wound transformer features cool running lamination steel, copper flux bands on the sides, hum shield for quieter operation, Unistrand pre-tinned 12" leads and stainless-steel through-bolts. Produces a B+ a little on the low side (about 410V with a 5AR4 and 6L6s) which makes it a friendly PT for cathode biased circuits and 6V6 based circuits. 2-1/2" by 3-1/8" mounting centers. 3-1/8" tall above mounting surface. 6.8lbs.
Upgrade power transformer for Deluxe/Deluxe Reverb amps. 320V-0-320V at 180ma, 5V at 3A and 6.3V at 4.5A. Supports the use of 6L6 AND EL34 power tubes (power tube sockets must be rewired for use with EL34 power tubes). Center tapped heater winding, 50V bias tap, copper flux bands and internal hum shield brought out to a lead for grounding (ensures the quietest amp possible). 2-1/4" by 2-13/16" mounting centers. Unit is approximately 3/4" taller than a stock PT and weighs 6.7 lbs. Great for high powered 5E3 projects, too.
Replacement Power Transformer for Super, Bassman, Pro, Vibroverb, and Bandmaster. 340V-0-340V at 200ma, 6.3V at 5A (supports EL34s!), 5V at 3A. 50V bias tap, center-tapped heater winding and internal hum shield brought out to a lead for grounding. 2-3/4" x 3-7/16" mounting centers, 7.6 lbs. Excellent replacement is quieter and cooler running than most originals.
Upgrade single-ended output transformer for Champ style amps
using a single 6V6 power tube (8,000 ohm primary impedance) and either a stock 4 ohm or custom 8 ohm speaker. Custom wound exclusively for Allen
Amplification and made in the USA by Heyboer. Smaller than the TO11C, the TO8C is more appropriate for a BF/SF Champ, VibroChamp or
Bronco style chassis but a big improvement over the stock unit. Rated 60ma continuous. Wound on a paper tube with paper-layered and
interleaved windings. Special grain-oriented high-performance lamination steel is used for maximum output and clarity. Excellent choice for
a 6V6 based 5F1, 5F2A or similar amp. 2-1/4"H x 2"W with 2-3/8" mounting centers and weighing 1 lb. Durable black oxide finish. 6" Unistrand
pretinned leads for fast installation. Includes stainless-steel mounting hardware!
New! TO8S Heyboer output transformer is rated 8,000 ohms primary to 8 ohms secondary. It is basically the above TO8C unit
mounted the "short way" and without the 4 ohm tap. This physical orientation relative to the power transformer eliminates any transformer coupled
hum and is thus quieter. It has wider mounting dimensions of 2-13/16" so it would require drilling one new mounting hole for a Champ installation.
It is the same size as the larger Fender choke.
Heavy-duty upgrade output transformer for single-ended amps
using a 6V6, 6L6, EL34 or dual 6V6 power tubes is custom wound in the USA by Heyboer
to stringent Allen specifications. 8,000 ohm primary to 8 or 16 ohm secondary for use
with a single 6V6. 4,000 ohm to 4 or 8 ohm for use with a single 6L6, EL34 or two 6V6s
in parallel. Rated 95ma continuous! Wound on a paper tube with paper-layered and specially
interleaved windings and featuring a special grain-oriented lamination steel for maximum
output and clarity. Excellent choice for 5F1, 5F2A and similar amps with more commonly
available 8 ohm speakers. Improved performance over stock output transformers. 2-5/8"H by
2-1/8"W with 2-13/16" mounting centers. Durable black oxide finish. 12" Unistrand pretinned
leads for fast installation. Stainless-steel mounting hardware included! 1.6lbs
New! TO11S Heyboer output transformer rated 4,000 ohms primary to 4 or 8 ohms secondary.
It is the same as the above TO11C but mounted on its side the short way to prevent transformer coupled hum. It will
now be the standard OT for the 10W Chihuahua. Excellent choice for a 6L6 or EL34 single-ended amp using either a 4
or an 8 ohm speaker load. 3-1/8" mounting centers. It is the same physical size as my TO22 transformer
NEW! Single-ended output transformer for a single 6550/KT88 power tube and an 8 ohm speaker load. As used in the new 14 watt Chihuahua amp. 3,000
ohm primary is rated 150mA continuous for single ended use. M-6 grain oriented core steel for maximum output and definition. 12" Unistrand pre-tinned leads and black oxide
finish. 3-1/8" mounting centers. 2-1/4" high and 2-1/2" wide. 1.6 lbs.
Bolt-on upgrade output transformer rated 6,600 ohms to 8 ohms with 2-13/16" mounting centers. Wider 1-1/4" lamination "fat stack"
gives this unit more than 60% additional core mass than typical 3/4" stack units (see photo) for improved performance. Special grain-oriented M6 core steel provides
maximum output and punch (over the whole guitar spectrum) from a pair of EL84s or 6V6s while its low profile easily clears speakers in combo amps. This unit is a
direct bolt-on upgrade for amps such as the Blues Jr. and Princeton Reverb amps and a good choice for 2xEL84 or 2x6V6 projects using an
8 ohm speaker load and where a compact unit is desired. Great for Princeton Reverbs with a 12" speaker installed. 2" tall, 2-5/16" deep and 2-5/8" wide across end bell
covers. Black oxide finish with 8" leads. 1.6lbs. Custom paper stick-wound in the USA by Heyboer!
helped me design and test this unit for Blues Jrs. and can provide expert installation.
NEW! Similar to the TO20 above, the new TO20B (Bifilar) output transformer is rated 6,600 ohms to 8 ohms with 2-13/16" mounting centers and a "fat
stack" of M-6 low loss core steel. It has 10" Unistrand leads and weighs 1.6lbs. The bifiliar wound unit takes a more "hi fi" approach to design for improved bass
response and extended frequency response. The center tap for the primary is the center of the number of turns and also the center of the DC resistance. It is a high
quality paper stick wound unit made in Chicago. ETP finish. Excellent upgrade for Blue Jrs, Pro Jrs, Princetons, old Gibsons®, others.
High Quality output transformer is an excellent replacement for Deluxe,
Deluxe Reverb and 5E3 style amps using a pair of 6V6s in push-pull, a great upgrade for a Princeton
or Princeton Reverb amp (bolts right on with no drilling) and is an awesome unit for 2xEL84 "18W" amps.
Custom wound to stringent Allen specifications and made in the USA by Heyboer. 6,600 ohm primary to
4 or 8 ohm unit features the same core steel and ratings as the original vintage amps for great tone
plus the option for 4 ohm "two speaker" configurations. Paper tube with paper-layered and specially
interleaved windings. Durable and cool looking black oxide finish with 12" Unistrand pretinned leads
for easy installation. Stainless-steel mounting hardware is included! The perfect choice for a 2x6V6
(or 2xEL84) amp where vintage tone and domestic manufacture are essential. 3-1/8" mounting centers,
2-1/4"H by 2-1/2"W. 1.6lbs.
NEW! A beefier output transformer with 50% more core steel for Deluxe, Deluxe Reverb and
similar 2x6V6 based amps bolts right in with the standard 3-1/8" mounting centers (fits a Princeton, too!)
and has both 8 and 16 ohm taps for single and dual 8 ohm speaker configurations. Custom wound exclusively
for Allen Amplification and made in the USA by Heyboer this unit features a special high performance core
steel for maximum output and clean bass. 7,000 ohm primary to 8 or 16 ohms. Also works great with a 2x6L6
or 2xEL34 amp (with 4 or 8 ohm speaker load) where the intention is to limit the output with core saturation
for natural compression and sustain. Low profile "fat" design to clear the speaker in combo amps. Excellent
choice for 18W Marshall and similar 2xEL84 amps, too. Paper tube, paper-layered and specially interleaved
windings, cool black oxide finish and 12" pretinned Unistrand leads for fast installation. Stainless-steel
mounting hardware is included! 2-1/4"H by 2-1/2"W and 1.6lbs.
A high quality replacement output transformer for Vibrolux, Pro, Bandmaster, Vibroverb
and Tremolux amps and "vibroclone style" projects. Custom wound in the USA by Heyboer on a paper tube with
paper layered and specially interleaved windings with a 4K ohm primary and both 4 and 8 ohm secondary taps
for one or two speaker set ups. As used in the Accomplice, Brown Sugar and Encore amplifiers. Special low
insertion loss lamination steel for increased output. Black oxide finish with 12" Unistrand pretinned leads
for fast installation. 3-9/16" mounting centers. 2.4 lbs. A very sweet sounding transformer for 2x6L6 amps.
Stainless-steel mounting hardware included!
Another exclusive Allen/Heyboer design provides a very robust 4 lb. output transformer to
exactly fit the 2-bolt 3-9/16" mounting centers of a Vibrolux, Pro, Bandmaster, Vibrolux or Tremolux chassis
without drilling. Get the increased bottom end performance and headroom similar to the 4-bolt Super/Bassman
style output transformers. As used in the Old Flame amplifier. 4,000 ohm primary to 4/8 ohm secondary. Custom
wound in the USA on a paper tube with paper layered and specially interleaved windings and featuring special
lamination steel. Black oxide finish with 12" pretinned "Unistrand" leads for quick installation. Includes
heavy duty #10 stainless-steel mounting hardware!
Replacement Choke for Twin, Super, Pro, Bassman, Bandmaster, Vibroverb, Showman, Vibrosonic, and early Tremolux amps. Replaces the 125C1A style choke with 2-13/16" mounting centers, 2" tall. 3H, 100 ohms, 1lb.
Replacement Choke for Deluxe, Vibrolux, and later Tremolux amps. 2" mounting centers, 1-3/8" tall.
Replacement Reverb Transformer for most Fenders. 1-23/32" mounting centers, 1-3/4"
$50 minimum per order. No substitutions. Call with credit card info. No changes/additions to orders once processed.