Hammond 290MAZ Studio 15 Little Fatty Marshall Power Transformer
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Create Free Business AccountKey Features
- Listed for the Marshall Studio 15 "Little Fatty" (reference only)
- Similar amp P/N 294-285/6
- 117/234VAC 50/60 Hz primary
- 600Vct @ 100 mA high-voltage secondary
- 6.3Vct @ 2A heater winding
- Bobbin-wound construction
- 7 lbs (3.18 kg); RoHS and REACH compliant
The 290MAZ is a Hammond 290 Series power transformer listed as a replacement for the Marshall Studio 15 "Little Fatty". The similar amp part number given for reference is 294-285/6. It is aimed at technicians and owners repairing this lower-power combo.
The primary is rated 117/234VAC 50/60 Hz, and the ordering table lists a 600Vct @ 100 mA high-voltage secondary and a 6.3Vct @ 2A heater winding. The winding is bobbin.
The part page short description simply reads POWER TRANS, and no drawing dimensions are published, so compare mounting with the original unit before installation.
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.
The high-voltage winding is centre-tapped at 600Vct and rated 100 mA, alongside a 2A centre-tapped heater winding.
The 290MAZ ships at 7 lbs (3.18 kg). It is RoHS and REACH compliant and identified by UPC 623980474540 and UNSPSC 39121301. Model and part number references are for reference only.
Ideal For
- Marshall Studio 15 power transformer replacement
- 294-285/6 cross-reference replacement
- Low-power tube combo repair
Overview
| Series | 290 Series (Tube Guitar Amplifier - Power Transformers) |
| Part Number | 290MAZ |
| Product Type | Power transformer, replacement for Marshall guitar amp, 290 series |
| Short Description | POWER TRANS |
| Amp Model (Ref. Only) | Studio 15 "Little Fatty" |
| Amp Manufacturer (Ref. Only) | Marshall |
| Similar Amp P/N's (Ref. Only) | 294-285/6 |
Electrical
| Secondary 1 | 600Vct @ 100 mA |
| Secondary 2 | 6.3Vct @ 2A |
| Primary Volts | 117/234VAC 50/60 Hz. |
Identifiers
| UPC | 623980474540 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 7 lbs (3.18 kg) |
Construction & Finish
| Winding | Bobbin |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
Amp Cross-Reference (Ref. Only)
| Listed Amp (Marshall Table) | Studio 15 "Little Fatty"; similar P/N: 294-285/6 |
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Frequently Asked Questions
Which amp is the 290MAZ listed for?▾
The Marshall Studio 15 "Little Fatty", similar amp P/N 294-285/6, for reference only.
What primary voltage does it take?▾
117/234VAC 50/60 Hz.
What are the secondaries?▾
600Vct @ 100 mA and 6.3Vct @ 2A.
How is it wound?▾
Bobbin, per the ordering table.
What does it weigh?▾
7 lbs (3.18 kg) shipping weight.
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