Hammond 290EZ 57 Twin Reissue 120V Paper-Wound Power Transformer
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Create Free Business AccountKey Features
- Listed for the 57 TWIN REISSUE (similar P/N 64419000, reference only)
- 120V @ 60 Hz primary
- 640Vct @ 250 mA high-voltage secondary
- 50V bias winding
- 6.3V @ 4A heater and 5V @ 4A windings
- Paper-wound construction
- RoHS and REACH compliant; 7.65 lbs (3.47 kg)
The 290EZ is a Hammond 290 Series power transformer listed as a replacement for the Fender 57 TWIN REISSUE. The similar amp part number given for reference is 64419000. It is intended for techs and owners servicing this reissue on 120V mains.
Its primary is rated 120V @ 60 Hz. Secondaries are 640Vct @ 250 mA for the high-voltage supply, a 50V bias winding, 6.3V @ 4A for heaters, and 5V @ 4A. The part page short description reads 330-0-330, 6.3V@4A, 5V@4A. The ordering table lists paper winding.
Hammond designed the 290 Series for drop-in replacement of original units, with parts made to look similar to the original factory transformers where possible and materials and design specs kept as close as possible to the original part to preserve the stock tone.
Taken together, the four secondaries cover the plate supply, bias, heaters and a 5V load from one 120V primary.
The 290EZ ships at 7.65 lbs (3.47 kg). It is RoHS and REACH compliant, with UPC 623980930398 and UNSPSC 39121301. For 240V @ 50/60 Hz mains, the 290EEZ is listed for the same amp with a 660Vct @ 250 mA high-voltage winding. Model references are for reference only.
Ideal For
- 57 Twin Reissue power transformer replacement
- Reissue combo amp repair
- Guitar amp restoration on 120V mains
Overview
| Series | 290 Series (Tube Guitar Amplifier - Power Transformers) |
| Part Number | 290EZ |
| Product Type | Power transformer, replacement for Fender guitar amp, 290 series |
| Short Description | 330-0-330, 6.3V@4A, 5V@4A |
| Amp Model (Ref. Only) | 57 TWIN REISSUE* |
| Amp Manufacturer (Ref. Only) | Fender |
| Similar Amp P/N's (Ref. Only) | 64419000 |
Electrical
| Secondary 1 | 640Vct @250 mA |
| Secondary 2 | 50V Bias |
| Secondary 3 | 6.3V @ 4A |
| Secondary 4 | 5V @ 4A |
| Primary Volts | 120V @ 60 Hz |
Identifiers
| UPC | 623980930398 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 7.65 lbs (3.47 kg) |
Construction & Finish
| Winding | Paper |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
Amp Cross-Reference (Ref. Only)
| Listed Amp (Fender Table) | 57 TWIN REISSUE*; similar P/N: 64419000 |
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Frequently Asked Questions
Which amp is the 290EZ listed for?▾
The 57 TWIN REISSUE, similar amp P/N 64419000, for reference only.
What are the ratings?▾
Primary 120V @ 60 Hz; secondaries 640Vct @ 250 mA, 50V bias, 6.3V @ 4A and 5V @ 4A.
Is it paper or bobbin wound?▾
Paper, per the ordering table.
Is there a 240V version?▾
The 290EEZ is listed for the 57 TWIN REISSUE with a 240V @ 50/60 Hz primary and a 660Vct @ 250 mA high-voltage secondary.
What does it weigh?▾
7.65 lbs (3.47 kg).
