Weber    Magnetics

Weber transformers and chokes are replacements for vintage units and for use in new designs. Some of the power transformers have increased current capacity in the filament winding and the high voltage winding. Some have multiple high voltage taps for use with or without a tube rectifier. Transformers with bolts are supplied with #8-32 zinc plated nuts with integral star washer. Others are supplied with two bright zinc plated #8-32 phillips head bolts and nuts with integral star washers.

Please Note: Fender amp model names and transformer applications refer to Brown, Blonde, and Blackface/Silverface series chasses unless the model name is preceded by 'Tweed'.

We have discovered that on some vintage amps, either due to chassis changes concurrent with transformer supplier change or for some other unknown reason, some chassis PT cutouts vary in width and length. In those cases, our lower endbell might be slightly larger than the hole and must be removed to fit the chassis PT cutout. The bolt pattern fits fine, however. This appears to occur in some Fender BF and later Deluxe and Vibrolux models. The transformer will work fine without the bottom bell installed.


For power transformer models with 220-250V input that we don't offer, please visit
Mojo Musical Supply

Transformer Testing: The industry standard testing called HIPOT Testing (it stands for "High Potential") applies a high DC voltage between each transformer lead and the case, and in some instances between individual leads. The idea is to test for shorts that occur as a result of arcing between the leads and the winding wires in the transformer. This is particularly important when testing output transformers because of the potential problems associated with flyback voltage from the speaker or speakers that gets multiplied up in the primary of the output transformer. Flyback and the resulting arcing can ruin an output transformer as well as create carbon paths on the output tube socket between pins, leading to a failure of the socket. The industry standard HIPOT DC testing voltage is 2000 volts. Due to the nature of this market and the potential for very reactive loads being used, Weber HIPOT tests all of its output transformers at 4000 volts DC.

Weber Transformers carry a 90-day warranty.

Click here for transformer applications information
Qty Model
Click for Description
Price Wattage Description
  W022772
125P1B
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$42.00 6 to 15 Power Transformer for Tweed Champ, Champ, Vibro Champ, and Princeton. 120 and 125 Volt input.
  W022772EU
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$48.00 6 to 15 Power Transformer for Tweed Champ, Champ, Vibro Champ, and Princeton. 120, 220, 240 inputs, 600V and 660V HV taps.
  W022772INT
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$33.00
NEW LOWER PRICE
6 to 15 International voltages Power Transformer for Tweed Champ, Champ, Vibro Champ, Princeton, Princeton Reverb. 100, 120, 125, 220, 230, 240 volt inputs, 600V and 660V HV taps. Note this transformer has wires exiting from both sides. It should be converted to a stand up type by using stand-up bells below (sold separately). Please see pictures and descriptions for mounting info.
 
pair(s)
W022772SU-BELL
Click for Pic

$6.00 - End bells to convert the W022772, W022772EU, and W022772INT transformers from lay down type to stand up type. Price is for 2 identical endbells. NOTE: When removing the endbells, if any cracks in the taps cause exposed wires, be sure to use an insulator like heat shrink or electrical tape to cover these prior to putting th new endbells on. It is imperative that you exercise good practice when replacing endbells on transformers.
W022905
125A35A
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$25.00 6 to 15 Output Transformer for Tweed Champ, Champ, Vibro Champ, and reverb driver for Weber 5G15 and 5H15 (ReVibe) chasses. 4 ohms output.
W022905M
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$30.00 6 to 15 Output Transformer for Tweed Champ, Champ, Vibro Champ, and reverb driver for Weber 5G15 and 5H15 (ReVibe) chasses. 4 and 8 ohms output.
  W022913
125A10B
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$28.00 15 Output Transformer for Tweed Princeton and Princeton Reverb
WSE15
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$35.00 15 Single Ended Output Transformer, 5K : 2,4,8, and 16
WSE25
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$48.00 25 Single Ended Output Transformer, 5K : 2,4,8, and 16
W025130
125P23B
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$50.00 20 to 25 Power Transformer for Deluxe, Deluxe Reverb, Tweed Tremolux, Weber 6M18. 120 and 125 Volt input.
  W025130EU
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$54.00 20 to 25 Power Transformer for Deluxe, Deluxe Reverb, Tweed Tremolux, Weber 6M18. 120, 220, and 240 volt primary
WPTGP
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$35.00 20 to 25 General purpose multi-tap transformer for bridge rectified high voltage supplies. 120, 220, and 240 primary.
Same outer dimensions as W025130.
  W025130INT
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$42.00
NEW LOWER PRICE
20 to 25 International voltages Power Transformer for Deluxe, Deluxe Reverb, Tweed Tremolux, Weber 6M18. 100, 120, 125, 220, 230, and 240 volt primary. Note this transformer has wires exiting from both sides. It should be converted to a stand up type by using stand-up bells below (sold separately). Please see pictures and descriptions for mounting info.
 
pair(s)
W025130SU-BELL
Click for Pic

$8.00 - End bells to convert the W025130, W025130EU, W025130INT, and PTGP transformers from lay down type to stand up type. Price is for 2 identical endbells. NOTE: When removing the endbells, if any cracks in the taps cause exposed wires, be sure to use an insulator like heat shrink or electrical tape to cover these prior to putting th new endbells on. It is imperative that you exercise good practice when replacing endbells on transformers.
W041318
125A1A
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$26.00 25 Output Transformer for Deluxe, Deluxe Reverb, Tweed Tremolux
W022723
125P26A
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$58.00 30 to 35 Power Transformer for Tremolux, Vibrolux, Vibrolux Reverb
W022798
125P5D
125P7D
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$68.00 40 US voltages Power Transformer for Tweed Bandmaster, Tweed Bassman, Weber 6M45, Weber 6A40, Bandmaster Reverb, Super, Super Reverb, Pro, Pro Reverb, Bandmaster, Bassman, and Concert. 120 and 125 Volt input.
W022798EU
125P5D
125P7D
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$80.00 40 Power Transformer for Tweed Bandmaster, Tweed Bassman, Weber 6M45, Weber 6A40, Bandmaster Reverb, Super, Super Reverb, Pro, Pro Reverb, Bandmaster, Bassman, and Concert. 120, 220, and 240 volt primary
W022798INT
125P5D
125P7D
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$50.00
NEW LOWER PRICE
40 International voltages Power Transformer for Tweed Bandmaster, Tweed Bassman, Weber 6M45, Weber 6A40, Bandmaster Reverb, Super, Super Reverb, Pro, Pro Reverb, Bandmaster, Bassman, and Concert. 100, 120, 125, 220, 230, and 240 volt primary. Note this transformer has wires exiting from both sides. It should be converted to a stand up type by using stand-up bells below (sold separately). Please see pictures and descriptions for mounting info.
 
pair(s)
W022798SU-BELL
Click for Pic

$9.00 - End bells to convert the W022798, W022798EU, and W022798INT transformers from lay down type to stand up type. Price is for 2 identical endbells. NOTE: When removing the endbells, if any cracks in the taps cause exposed wires, be sure to use an insulator like heat shrink or electrical tape to cover these prior to putting th new endbells on. It is imperative that you exercise good practice when replacing endbells on transformers.
W022848
125A6A
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$35.00 40 Output transformer for Vibrolux, Tremolux, Bandmaster, Pro, and others.  4K Primary, 4 Ohm secondary.
W404248
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$46.00 40 Multitap output transformer for general purpose use.  4K Primary, 2-4-8 secondary, smaller size similar to W022848
W018343
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$58.00 40 Multitap output transformer for general purpose use.  4K Primary, 2-4-8 secondary, larger size similar to W022855.
W022855
125A9A
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$58.00 40 Output Transformer for Tweed Bassman, Concert, Super Reverb, and other 4x10 amps requiring a 2 ohm output transformer.
WOT1484
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$50.00 40 Better known as that funky Sears Silvertone Output transformer, I just had to do this one after I heard a Sears Silvertone 1484 amp. 50 watts, 4K : 4,8. Great overdrive tone, really juicy. This is a through-chassis mount.
W022756
125P34A
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$70.00 80 Power Transformer for Fender Twin, Twin Reverb, Dual Showman, Dual Showman Reverb, Super 6 Reverb, Showman, Quad Reverb, Bassman 100, Weber 6A80
W022889
125A29A
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$58.00 80 Output Transformer for Fender Twin, Twin Reverb, Dual Showman, Dual Showman Reverb, Super 6 Reverb, Showman, Quad Reverb, Bassman 100, Weber 6A80
WRVBPT
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$25.00 10 Power Transformer for Fender Standalone Reverb, Weber 5G15, and 5H15 (ReVibe) Chasses
WRVBPTEU
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$32.00 10 Power Transformer for Fender Standalone Reverb, Weber 5G15, and 5H15 (ReVibe) Chasses. 120, 220, and 240 volt primary
W022921
125A20B
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$15.00 3 Reverb Driver for most Fender amps. 25K:8 impedance.
W022699
125C1A
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$12.00 - Universal choke.   9H @ 120ma.
W014684
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$25.00 - Choke for Tweed Fenders.   5-8H @ 200ma, 125 ohms, 3-9/16" mounting.
WPT30
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$75.00 30+ 30 watt power transformer for AC-30 type circuit, including Weber 6V15, 6V30, and 6D30.
WOT45LHR
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$58.00 45 45 watt Marshall output transformer
3400(6800) : 2(4), 4(8), 8(16), 16(32). Lower headroom, ballsy, great overdrive tone.
WOT45HHR
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$58.00 45 45 watt Marshall output transformer
3400(6800) : 2(4), 4(8), 8(16), 16(32). Higher headroom, punchy, dynamic.
WPT100
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$75.00 100 100 watt Marshall power transformer, standup type. Fits Weber 6M100 and many Marshall 100 watt chasses.  Feet may be removed for Z mount use.
WOT100LHR
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$80.00 100 100 watt Marshall output transformer
2K : 4, 8, 16. Lower headroom, ballsy, great overdrive tone.
WOT100HHR
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$80.00 100 100 watt Marshall output transformer
2K : 4, 8, 16. Higher headroom, punchy, dynamic.
WZC-50
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$30.00 50 Impedance Converter Transformer, 50 watts, 2, 2.6, 4, 5.3, 8, 16 IN and OUT, 18" color coded leads
Temporarily Out Of Stock WZC-100
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$48.00 100 Impedance Converter Transformer, 100 watts, 2, 2.6, 4, 5.3, 8, 16 IN and OUT, 18" color coded leads
W5V3A $25.00 15 5 volt, 3 amp transformer for adding a tube rectifier to an amp with solid state rectifier.
WPDLXFMR-1
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$25.00 35 Pedal and effects power supply transformer, Eight 11 volt, 300ma windings and one 9 volt, 2 amp winding. 120VAC input.   This is a transformer, NOT a power supply. The output is AC, not DC. You must build a power supply that converts AC to DC in order to use this transformer.
WPDLXFMR-2
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$24.00 45 Pedal and effects power supply transformer, Eight 11 volt, 300mA windings and one 9 volt, 2 amp winding. 120-220-240 VAC input. This is a transformer, NOT a power supply. The output is AC, not DC. You must build a power supply that converts AC to DC in order to use this transformer.
WPDLPT
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$20.00 10 Unique transformer with 12VAC input and 260VAC output. Allows one to build a full voltage tube effects pedal powered by a 12V wall wart.
WBALUN
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4.00 - This is a transformer you can use to create a balanced output sample of your amps output signal. You connect the output of this transformer to an XLR or TRS phone jack and you have a balanced signal to take to the board. Eliminates ground loops.