Hammond 291ZZ Bassman 135 Replacement Tube Amp Power Transformer
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Create Free Business AccountKey Features
- Drop-in replacement power transformer for the Fender BASSMAN 135 (Silverface, similar P/N 13692)
- Also listed for the SUPER SIX REVERB 135 (similar P/N 13830)
- 120V @ 60 Hz primary with 364Vct @ 1A high voltage secondary
- 53V bias winding plus two 6.3Vct @ 7A heater windings
- 29M6 laminations for low core loss; bobbin winding
- Materials and design kept close to the original to preserve stock tone
- REACH and RoHS compliant; 11.65 lbs (5.28 kg) shipping weight
The 291ZZ is a replacement power transformer for Fender tube guitar amplifiers, listed in the 290 Series for the Silverface BASSMAN 135 (similar amp P/N 13692) and also in the ordering table against the SUPER SIX REVERB 135 (similar amp P/N 13830). It is intended for amp technicians, restorers and players who need to replace or upgrade the original power transformer in these amplifiers. Amp model, similar part numbers and chassis references are supplied by the manufacturer for reference only.
Like the rest of the 290 Series, this unit is designed as a drop-in replacement for the original, is made to look similar to the original factory unit where possible, and keeps materials and design specifications as close as possible to the original part to preserve the stock tone. The part drawing identifies it as a Fender replacement for part # 013692, built with 29M6 laminations for low core loss.
Electrically, the 291ZZ takes a 120V @ 60 Hz primary. Secondary 1 is the high voltage winding at 364Vct @ 1A, Secondary 2 is a 53V bias winding (listed as 53V @ 1A in the SUPER SIX REVERB 135 row), and Secondaries 3 and 4 each provide 6.3Vct @ 7A for tube heaters. Construction is bobbin wound.
The 291ZZ has a shipping weight of 11.65 lbs (5.28 kg) and is listed as both REACH and RoHS compliant. Confirm the voltages, mounting and fit against your amplifier's original transformer before ordering.
Ideal For
- Fender BASSMAN 135 power transformer replacement
- SUPER SIX REVERB 135 power transformer replacement
- Vintage Silverface amp restoration
- Tube amp repair and upgrade
Overview
| Series | 290 Series - Tube Guitar Amplifier Power Transformers |
| Replaces | Fender part # 013692 |
| Product Type | Power transformer, replacement for Fender guitar amp |
| Amp Manufacturer | Fender |
| Short Description | 364VCT,@1A, 53@1A, 6.3VCT 7A |
| Amp Model (Ref. Only) | BASSMAN 135*; SUPER SIX REVERB 135* |
| Chassis No. (Ref. Only) | Silverface |
| Similar Amp P/N's (Ref. Only) | 13692 (BASSMAN 135); 13830 (SUPER SIX REVERB 135) |
Electrical
| Secondary 1 | 364Vct @ 1A |
| Secondary 2 | 53V Bias (53V @ 1A in SUPER SIX REVERB 135 listing) |
| Secondary 3 | 6.3Vct @ 7A |
| Secondary 4 | 6.3Vct @ 7A |
| Primary Volts | 120V @ 60 Hz |
Identifiers
| UPC | 623980240534 |
| UNSPSC | 39121301 |
| Part Number | 291ZZ |
Packaging & Shipping
| Shipping Weight | 11.65 lbs (5.28 kg) |
Construction & Finish
| Core | 29M6 laminations for low core loss |
| Winding | Bobbin |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
Which amplifiers is the 291ZZ listed for?▾
The ordering table lists it for the Fender BASSMAN 135 (Silverface, similar amp P/N 13692) and the SUPER SIX REVERB 135 (similar amp P/N 13830). These references are for reference only.
What primary voltage does the 291ZZ use?▾
It is specified for a 120V @ 60 Hz primary.
What secondary windings does it have?▾
364Vct @ 1A high voltage, a 53V bias winding, and two 6.3Vct @ 7A windings.
Is it a direct replacement for the original transformer?▾
The 290 Series is designed for drop-in replacement of original units, and the drawing identifies the 291ZZ as a Fender replacement for part # 013692.
What core material is used?▾
The part drawing states it uses 29M6 laminations for low core loss.
How much does it weigh?▾
The shipping weight is 11.65 lbs (5.28 kg).
