Hammond 290JDX 92VA Marshall DSL-401 Power Transformer
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Create Free Business AccountKey Features
- 92VA power transformer listed for the Marshall DSL-401 (reference only)
- Similar amp P/N Dagnall TXMA-00080
- 117/234 VAC 50/60 Hz primary (dual 117V windings)
- 307V @ 215 mA, 6.7V @ 3.5A and 25V @ 75 mA secondaries
- Pin-terminated, bobbin-wound construction
- Hipot tested 4000V, 60Hz, 1 sec; UL and E207660 markings on drawing
- RoHS and REACH compliant
The 290JDX is a 92VA power transformer in the Hammond 290 Series. The Marshall section of the ordering table lists it for the DSL-401, with Dagnall TXMA-00080 given as the similar amp part number for reference. It suits repair techs servicing this combo.
The ordering table lists a 117/234 VAC 50/60 Hz primary; the drawing shows two 117V primary windings (pins 24-22 and 19-17). Outputs are 307V @ 215 mA (pins 15-16), 6.7V @ 3.5A (pins 9-10) and 25V @ 75 mA (pins 12-13). The ordering table lists bobbin winding.
Drawing test data at 117V, 60 Hz gives a 115mA maximum excitation current and no-load voltages of 324.6V, 27.00V and 7.200V on the three secondaries. The part is hipot tested primary to secondary at 4000V, 60Hz for 1 second, and the drawing carries UL and E207660 markings, RoHS compliance and Made in Canada.
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 290JDX is RoHS and REACH compliant and is identified by UPC 623980436432 and UNSPSC 39121301. No shipping weight is published.
Ideal For
- Marshall DSL-401 power transformer replacement
- Dagnall TXMA-00080 cross-reference replacement
- Tube combo repair on 117V or 234V mains
Overview
| Series | 290 Series (Tube Guitar Amplifier - Power Transformers) |
| Part Number | 290JDX |
| Product Type | 92VA Power Trans |
| Short Description | 92VA Power Trans |
Electrical
| VA Rating | 92VA |
| Secondary 1 | 307V @ 215 mA |
| Secondary 2 | 6.7V @ 3.5A |
| Secondary 3 | 25V @75 mA |
| Primary Volts | 117/234 VAC 50/60 Hz. |
| Input (Drawing) | I/P: Pin 24 - Pin 22: 117V 50/60Hz; I/P: Pin 19 - Pin 17: 117V |
| Output Pin 9 - Pin 10 | 6.7V 3.5A |
| Output Pin 12 - Pin 13 | 25V 75mA |
| Output Pin 15 - Pin 16 | 307V 215mA |
Identifiers
| UPC | 623980436432 |
| UNSPSC | 39121301 |
| Country Of Origin (Drawing) | Made in Canada |
Dimensions (Drawing)
| Dimension Tolerance | ±0.063 on all dimensions |
Construction & Finish
| Winding | Bobbin |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Drawing Label Markings | UL, E207660, RoHS Compliant |
Electrical Test Data (Drawing)
| Hipot Primary-Secondary | 4000V, 60Hz, 1 sec |
| DCR @ 20°C, Pin 9 - Pin 10 | 0.075 Ω ±20% |
| DCR @ 20°C, Pin 12 - Pin 13 | 10.97 Ω ±20% |
| DCR @ 20°C, Pin 15 - Pin 16 | 36.37 Ω ±20% |
| DCR @ 20°C, Pin 19 - Pin 17 | 7.428 Ω ±20% |
| DCR @ 20°C, Pin 24 - Pin 22 | 6.299 Ω ±20% |
| No-Load Voltage Pin 9 - Pin 10 | 7.200V ±2% |
| No-Load Voltage Pin 12 - Pin 13 | 27.00V ±2% |
| No-Load Voltage Pin 15 - Pin 16 | 324.6V ±2% |
| No-Load Voltage Pin 19 - Pin 17 | 117.0V ±2% |
| Excitation Current (Iex) @ 117V, 60Hz, Pin 24 - Pin 22 | 115mA Max. |
Amp Cross-Reference (Ref. Only)
| Listed Amp (Marshall Table) | DSL-401*; similar P/N: Dagnall TXMA-00080 |
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Frequently Asked Questions
Which amp is the 290JDX listed for?▾
The Marshall DSL-401, with similar P/N Dagnall TXMA-00080, for reference only.
What is its VA rating?▾
92VA.
How are the primaries configured?▾
The drawing shows two 117V primaries (pins 24-22 and 19-17); the ordering table lists 117/234 VAC 50/60 Hz.
What are the secondary ratings?▾
307V @ 215 mA, 6.7V @ 3.5A and 25V @ 75 mA.
Where is it made?▾
The drawing states Made in Canada.
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