Hammond 291DX 120V 650Vct 230mA Generic Amp Power Transformer
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224-955-1644Key Features
- Short description: REPLACED WITH 290DX
- 120V @ 60 Hz primary
- 650Vct @ 230 mA high voltage secondary
- 50V bias winding
- 6.3Vct @ 4A and 5V @ 3A secondaries
- Bobbin winding; 8 lbs (3.63 kg); RoHS and REACH compliant
The 291DX is a 290 Series tube guitar amplifier power transformer described as a replacement for Fender guitar amps, with the amp model listed as GENERIC. The manufacturer's short description reads REPLACED WITH 290DX, identifying the successor part number for anyone cross-referencing an existing 291DX.
It has a 120V @ 60 Hz primary. The high voltage secondary is 650Vct @ 230 mA, with a 50V bias winding, a 6.3Vct @ 4A winding and a 5V @ 3A winding. The winding type is listed as bobbin.
Like every 290 Series part, it was designed for drop in replacement of the original unit, physically designed to look similar to the original factory unit where possible, and built with materials and design specs kept as close as possible to the original part to preserve the stock tone.
Shipping weight is 8 lbs (3.63 kg). The 291DX is RoHS and REACH compliant, carrying UPC 623980252360 and UNSPSC 39121301. The 240V @ 50/60 Hz counterpart is the 291DEX. Because the amp model is listed as GENERIC, match the 650Vct, 50V bias, 6.3Vct and 5V winding ratings to your amplifier's requirements before ordering, and note the 290DX successor listed in the short description.
Ideal For
- Generic 120V tube guitar amp power transformer replacement
- Cross-reference to the 290DX
- Tube amp repair
Overview
| Series | 290 Series (Tube Guitar Amplifier - Power Transformers, Replacement & Upgrades) |
| Product Type | Power transformer, replacement for Fender guitar amp, 290 series |
| Replacement Part | 290DX |
| Short Description | REPLACED WITH 290DX |
Electrical
| Secondary 1 | 650Vct @ 230 mA |
| Secondary 2 | 50V Bias |
| Secondary 3 | 6.3Vct @ 4A |
| Secondary 4 | 5V @ 3A |
| Primary Volts | 120V @ 60 Hz |
Identifiers
| UPC | 623980252360 |
| UNSPSC | 39121301 |
Amplifier Reference
| Amp Manufacturer | Fender |
| Amp Model (Ref. Only) | GENERIC |
Packaging & Shipping
| Shipping Weight | 8 lbs (3.63 kg) |
Construction & Finish
| Winding | Bobbin |
| Appearance | Designed to look similar to original factory units (where possible) |
| Design Intent | Designed for drop in replacement of original units |
| Materials & Design Specs | Kept as close as possible to the original part to preserve the stock "tone" |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
Has the 291DX been replaced?▾
The manufacturer's short description reads REPLACED WITH 290DX.
What is the primary voltage?▾
120V @ 60 Hz.
What are the secondary ratings?▾
650Vct @ 230 mA, 50V bias, 6.3Vct @ 4A and 5V @ 3A.
What winding type is it?▾
Bobbin.
Is there a 240V version?▾
Yes, the 291DEX.
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