Hammond 290YEX 240V Bassman 70 Silverface Power Transformer
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Create Free Business AccountKey Features
- 240V @ 50/60 Hz primary
- Replacement for Fender BASSMAN 70, Silverface
- 372Vct @ 400 mA (186-0-186V) high voltage secondary
- 56V bias winding
- 6.3Vct @ 4A centre-tapped secondary
- Bobbin winding; 8 lbs (3.63 kg); RoHS and REACH compliant
The 290YEX is a 240V @ 50/60 Hz power transformer from the 290 Series, listed as a replacement for the Fender BASSMAN 70, Silverface chassis (reference only). It is suited to technicians restoring or repairing a Silverface Bassman 70 on 240V mains.
The high voltage secondary is 372Vct @ 400 mA, accompanied by a 56V bias winding and a 6.3Vct @ 4A winding. The short description expresses this as 186-0-186V@.4A, 6.3VCT@4A,56V. The ordering table lists a bobbin winding.
The 290 Series was designed for drop in replacement of original units. Parts were physically designed to look similar to the original factory units where possible, and the materials and design specs were kept as close as possible to the original part to preserve the stock tone.
The 290YEX ships at 8 lbs (3.63 kg). It is RoHS and REACH compliant, UPC 623980037387, UNSPSC 39121301. For 120V @ 60 Hz amplifiers, the same secondaries are listed on the 290YX. The amp model and chassis references are for reference only, so check the 372Vct, 56V bias and 6.3Vct ratings against the transformer you are replacing before installation.
Ideal For
- 240V Fender BASSMAN 70 Silverface transformer replacement
- 240V tube amp repair
- Silverface amp restoration
Overview
| Series | 290 Series (Tube Guitar Amplifier - Power Transformers, Replacement & Upgrades) |
| Product Type | Power transformer, replacement for Fender guitar amp, 290 series |
| Short Description | 186-0-186V@.4A, 6.3VCT@4A,56V |
Electrical
| Secondary 1 | 372Vct @ 400 mA |
| Secondary 2 | 56V Bias |
| Secondary 3 | 6.3Vct @ 4A |
| Primary Volts | 240V @ 50/60 Hz |
Identifiers
| UPC | 623980037387 |
| UNSPSC | 39121301 |
Amplifier Reference
| Amp Manufacturer | Fender |
| Amp Model (Ref. Only) | BASSMAN 70* |
| Chassis No. (Ref. Only) | Silverface |
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
What amp is the 290YEX for?▾
It is listed for the Fender BASSMAN 70, Silverface chassis, for reference only.
What is the 290YEX primary voltage?▾
240V @ 50/60 Hz.
What are the secondary ratings?▾
372Vct @ 400 mA, a 56V bias winding and 6.3Vct @ 4A.
Is there a 120V version?▾
Yes, the 290YX has the same secondaries with a 120V @ 60 Hz primary.
What does it weigh?▾
8 lbs (3.63 kg).