Hammond 290WEX 240V 63 Reverb Replacement Power Transformer
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Create Free Business AccountKey Features
- 240V @ 50/60 Hz primary for the Fender 63 REVERB, chassis 6G15
- 237V @ 50 mA high voltage secondary
- 6.6VCT @ 1.05A winding with GRN/YEL centre tap
- Colour-coded leads, 12.0" long minimum
- 2500V, 60Hz, 1 second primary-to-secondary hipot
- Drawing dimensions: 3.250" x 2.360" x 1.995" drawing dimensions (A, B, C)
- 1.43 lbs (0.65 kg); RoHS and REACH compliant
The 290WEX is a 290 Series power transformer listed as a replacement for the Fender 63 REVERB, chassis 6G15 (reference only), with a 240V @ 50/60 Hz primary. It is suited to technicians servicing a 6G15 63 REVERB on 240V mains.
The secondaries are 237V @ 50 mA and 6.6V @ 1.05A; the drawing shows the 6.6V winding as 6.6VCT with a GRN/YEL centre tap, added in revision 1. Primary leads are BLK and WHT, the high voltage winding is RED - RED and the 6.6V winding is GRN - GRN. All leads are 12.0" long minimum. The winding type is bobbin.
The drawing's electrical test data lists excitation current of 73.2mA max. at 240V, 50Hz, no-load voltages of 258.2V RED - RED, 7.208V GRN - GRN and 3.604V from each GRN to GRN/YEL (all ±2%), DC resistance at 20°C of 91.17 (BLK - WHT), 182.6 (RED - RED) and 0.233 (GRN - GRN), ±20%, and a 2500V, 60Hz, 1 second primary-to-secondary hipot. Drawing dimensions are A 3.250", B 2.360", C 1.995", D 2.813" and G 0.187".
Like all 290 Series parts it was designed for drop in replacement and to look similar to the factory unit where possible, with materials and specs kept close to the original to preserve the stock tone. Shipping weight is 1.43 lbs (0.65 kg); RoHS and REACH compliant; UPC 623980208091.
Ideal For
- Fender 63 REVERB (6G15) power transformer replacement on 240V
- 6G15 chassis repair on 240V mains
- Low-current tube circuit mains supply
Overview
| Series | 290 Series (Tube Guitar Amplifier - Power Transformers, Replacement & Upgrades) |
| Product Type | Power transformer, replacement for Fender guitar amp, 290 series |
| Short Description | 240V,50 HZ-306VDC / 6.6V 1.05A |
Dimensions
| Dimension A (Drawing) | 3.250" ±0.063 |
| Dimension B (Drawing) | 2.360" ±0.125 |
| Dimension C (Drawing) | 1.995" ±0.063 |
| Dimension D (Drawing) | 2.813" ±0.063 |
| Dimension G (Drawing) | 0.187" ±0.015 |
Electrical
| Hipot Test | 2500V, 60Hz, 1 SEC (Primary - Secondary) |
| Secondary 1 | 237V @ 50 mA |
| Secondary 3 | 6.6V @ 1.05A (6.6VCT per drawing) |
| Primary Volts | 240V @ 50/60 Hz |
| Primary Leads (Drawing) | BLK - WHT (240V 50Hz) |
| Excitation Current (Iex) | 73.2mA Max. @ 240V, 50Hz, BLK - WHT |
| DC Resistance @ 20°C, BLK - WHT | 91.17 ±20% |
| DC Resistance @ 20°C, GRN - GRN | 0.233 ±20% |
| DC Resistance @ 20°C, RED - RED | 182.6 ±20% |
| Secondary No-Load Voltage, GRN - GRN | 7.208V ±2% |
| Secondary No-Load Voltage, RED - RED | 258.2V ±2% @ 240V, 50Hz, BLK - WHT |
| Secondary No-Load Voltage, GRN - GRN/YEL = GRN/YEL - GRN | 3.604V ±2% |
Identifiers
| UPC | 623980208091 |
| UNSPSC | 39121301 |
Amplifier Reference
| Amp Manufacturer | Fender |
| Amp Model (Ref. Only) | 63 REVERB* |
| Chassis No. (Ref. Only) | 6G15 |
Packaging & Shipping
| Shipping Weight | 1.43 lbs (0.65 kg) |
Construction & Finish
| Winding | Bobbin |
| Appearance | Designed to look similar to original factory units (where possible) |
| Lead Length | All leads 12.0" long min. |
| Design Intent | Designed for drop in replacement of original units |
| Drawing Revision | Rev. 1 (03/28/25): added CT to 6.6V winding |
| 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 is the 290WEX used for?▾
It is listed as a replacement power transformer for the Fender 63 REVERB, chassis 6G15 (reference only), on a 240V @ 50/60 Hz supply.
What are the 290WEX secondary ratings?▾
237V @ 50 mA and 6.6V @ 1.05A, with the 6.6V winding centre tapped (6.6VCT).
What are the lead colours?▾
Primary BLK - WHT; high voltage RED - RED; 6.6V GRN - GRN with a GRN/YEL centre tap. All leads are 12.0" long minimum.
What are the drawing dimensions?▾
A 3.250" ±0.063, B 2.360" ±0.125, C 1.995" ±0.063, D 2.813" ±0.063 and G 0.187" ±0.015.
What hipot test is applied?▾
2500V, 60Hz for 1 second, primary to secondary.
Is there a 120V version?▾
The 290WX lists the same secondaries with a 120V @ 60 Hz primary.
