Guitar Amp Power Transformer Replacements
Author: Kevinm Date Posted:14 August 2017
Hammond Replacement Power Transformers
Top quality Australian-compatible power transformers designed by Hammond and supplied by Evatco for Fender, Marshall, Vox and Ampeg amplifiers.
Drop-in Replacement
Engineered for direct physical and electrical drop-in replacement of original factory units.
Vintage Appearance
Crafted to mirror original chassis aesthetics and mounting specs where possible.
Preserved Stock Tone
Material choices and design specifications closely match originals to preserve classic tone.
Australian / 240V Compatible Directory
| Amp Wattage | Part No. | Primary Voltage | Amp Model Names | Type | Similar OEM Part No. |
|---|---|---|---|---|---|
| Fender | |||||
| 5 Watt | 290ABX | 120/240 VAC 50/60 Hz | Vibro Champ XD | Export | — |
| 5 - 15 Watt | 291AEX | 120/220/230/240 VAC 50/60 Hz | Bronco (AA764, Blackface), Champ (Tweed, 5C1, 5E1, 5F1, AA764, Blackface, Silverface), Vibro Champ (AA764, Blackface, Silverface), Harvard (6G10), Princeton (Tweed, 5E2, 5F2, 5F2A, AA964, Brown, Blackface, Silverface), Princeton Reverb (AA1164, AA764, B1270, Blackface, Silverface) | Export | 125P1B, 022772, 66079 |
| 10 Watt | 290HAEX | 120/210/230/240 VAC 50/60 Hz | Harvard (Tweed, 5F10, push-pull) | Export | — |
| 10 Watt | 291MZ | 100/120/220/230/240 VAC 50/60 Hz | Vibrolux Tweed (5F11) | Export | — |
| 15 Watt | 290XEX | 240 VAC 50/60Hz | Blues Junior | Export | 49968 |
| 15 Watt | 290AXER | 240 VAC 50/60 Hz | 65 Princeton Reverb Reissue | Export | 75165000 |
| 15 Watt | 291ACX | 120/240 VAC 50/60 Hz | Super Champ X2 | Export | 91234000, 13830 |
| 15 Watt | 290BBEX | 120/220/230/240 VAC 50/60 Hz | Deluxe (Tweed) | Export | 6452 |
| 20 Watt | 290BEX | 240 VAC 50/60 Hz | Deluxe (5A3, 5B3, 5C3, 5E3, 6G3, AB763), Deluxe Reverb (A1172, A1270, AA763, AB763, AB868, Blackface, Silverface, w/Volume Boost), Tweed Tremolux | Export | 125P23B, 125P23D, 025130 |
| 40 Watt | 290CEX | 240 VAC 50/60 Hz | Vibrolux (AB763), Vibrolux Reverb (AA270, AA964, AB568), Tremolux (AA763, AB763) | Export | 125P26A, 022723 |
| 40 Watt | 290UEX | 240 VAC 50/60 Hz | Hot Rod Deluxe | Export | 36958 |
| 40 Watt | 290EEZ | 230/240V 50/60 Hz | 57 Twin Reissue | Export | 64603000 |
| 40 Watt | 290D2EX | 120/210/220/230/240 VAC 50/60 Hz | Bandmaster (Tweed), Bandmaster Reverb (AA1069, AA270, AA763, Blackface, Silverface), Bassman (Tweed, 5F6, 5F6A), Pro (Tweed, Blackface, AB763), Pro Reverb (AB668, AA1069, AA270, Silverface), Super (Tweed), Super Reverb (AA763, AB763, AB568, AA270, Brownface, Blackface, Silverface) | Export | 8087, 125P5D, 125P5DX, 022798, 022806 |
| 40 - 50 Watt | 290DEX | 240 VAC 50/60 Hz | Bandmaster (Tweed, Reverb AA1069, AA270, AA763, Silverface, Blackface), Bassman (Combos, Tweed, 5F6, 5F6A, 59), Pro (Tweed, Pro, Blackface AB763, Reverb AA1069, AA270, AB668, Silverface), Super (Tweed, Brownface, 5F4, 6G4, 6G4A, Reverb AA270, AA763, AB568, AB763, Blackface, Silverface), Vibroverb (6G16, AA763, Blackface) | Export | 125P5D, 022798 |
| 40 - 50 Watt | 290EEX | 120/210/230/240 VAC 50/60 Hz | Bandmaster (6G7A, AA763, AB763, AC568, AD1269, Blackface, Blonde, Silverface), Bassman (AA165, AA270, AA864, AB165, Blackface, Silverface), Concert (6G12A, AA763, Blackface, Brownface) | Export | 125P7D, 022814 |
| 50 - 60 Watt | 290VEX | 240 VAC 50/60 Hz | Hot Rod DeVille, Chorus Ultra, Deluxe Blues, Super-Sonic 60 Combo, 93 Super/Concert | Export | 41752 |
| 15 / 75 Watt | 290YEX | 240 VAC 50Hz | Fender 75 | Export | 13895 |
| 60 / 100 Watt | 290SX | 120/230/240 VAC 50/60 Hz | Vibro King, Tone Master | Export | 26554 |
| 85 Watt | 290EEBZ | 120/210/220/230/240 VAC 50/60 Hz | 65 Twin Reverb Reissue | Export | 37610 |
| 100 Watt | 290FEX | 240 VAC 50/60 Hz | Twin Reverb (AA769, AA270, AB763, Blackface, Silverface), Showman (AB763, AC568, AA763, Blackface, Silverface), Dual Showman (AB763, AC568), Dual Showman Reverb (AA769), Showman Reverb (AA768), Bassman 100 (Silverface), Quad Reverb, Super Six Reverb, Vibrosonic | Export | 125P34A, 022756 |
| 100 Watt | 290EEAZ | 120/210/220/230/240 VAC 50/60 Hz | 94 Twin Reissue | Export | 41776 |
| 100 Watt | 290REX | 100/120/220/240 VAC 50/60 Hz | The Twin (Red Knob) | Export | 26477 |
| 135 Watt | 291ZEZ | 120/240 VAC 50/60 Hz | Bassman 135 (Silverface), Twin Reverb 135, Quad Reverb, Super Six, Vibrosonic | Export | 13692, 13830 |
| Reverb Unit | 290WEX | 240 VAC 50/60 Hz | 63 Reverb (6G15 stand-alone reverb) | Export | 68319A |
| Marshall | |||||
| 15 Watt | 290MAZ | 117/234 VAC 50/60 Hz | Studio 15 "Little Fatty" | Export | 294-285/6 |
| 18 Watt | 290PAZ | 120/240 VAC 50/60 Hz | Marshall 18 Watt Combo | Export | — |
| 30 Watt | 290QX | 120/240 VAC 50/60 Hz | JTM 30 Watt | Export | Drake 292-772 |
| 40 Watt | 290JDX New | 117/234 VAC 50/60 Hz | DSL401 | Export | Dagnall TXMA-00080 |
| 45 - 50 Watt | 290LX / 290MAEX | 100/120/220/230/240 VAC 50/60 Hz | JTM45 (290MAEX is the upgraded version) | Export | — |
| 50 Watt | 290GX / 290GZ | 120/220/240 VAC 50/60 Hz | JCM800 50 Watt | Export | — |
| 50 Watt | 290KX | 120/240 VAC 50/60 Hz | JCM900 50 Watt | Export | — |
| 100 Watt | 290HX / 290HZ | 120/220/240 VAC 50/60 Hz | JCM800 100 Watt | Export | — |
| 100 Watt | 290JX | 120/240 VAC 50/60 Hz | JCM900 100 Watt | Export | — |
| 100 Watt | 290CG | 120/240 VAC 50/60 Hz | TSL100 | Export | — |
| Vox | |||||
| 15 Watt | 290PX | 120/240 VAC 50/60 Hz | AC15 | Export | — |
| 15 Watt | 290CEZ | 120/240 VAC 50/60 Hz | AC15C1 | Export | — |
| 30 Watt | 290MXR | 120/240 VAC 50/60 Hz | AC30 Reissue | Export | — |
| 30 Watt | 290MX | 120/240 VAC 50/60 Hz | AC30 60's Vintage (flat mount) | Export | — |
| 30 Watt | 290NX | 100/120/220/230/240 VAC 50/60 Hz | AC30 Vintage (reverb versions) | Export | — |
| 35 Watt | 290MAX | 120/240 VAC 50/60 Hz | TB35C2 (Tony Bruno) | Export | — |
| Ampeg | |||||
| 50 Watt | 291HX | 100/115/230 VAC 50/60 Hz | V50H | Export | 94-270-030 |
Hammond Mfg. is not affiliated with Fender, Marshall, Vox or Ampeg. Amplifier model names are trademarks of their respective owners and are listed for reference purposes only. Not all amplifiers of the same model name use the same transformer – please check your amp before ordering.
