Hammond 1750X 100W Push-Pull Output Transformer for JCM 900 Amps
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Create Free Business AccountKey Features
- 100 W push-pull output transformer for tube guitar amps
- 1,700 ohm C.T. primary impedance
- Multiple secondary impedances (2, 4, 8, 16 ohms per part page)
- Listed for Marshall JCM 900 amplifiers
- Bobbin wound
- Designed for drop in replacement of original units
- RoHS and REACH compliant
The 1750X is a 100 watt push-pull output transformer for tube guitar amplifiers, listed by the manufacturer for Marshall JCM 900 amplifiers. It is intended for amp technicians and restorers who need a drop in replacement for an original output transformer in this model family.
The part page lists a primary impedance of 1,700 ohms center-tapped and secondary impedances of 2, 4, 8 and 16 ohms, while the Marshall section of the series ordering table lists secondaries of 4, 8 and 16 ohms. The manufacturer's long description reads "126, 500, 2,000 ohm pri., 2, 4, 8, 16 ohm sec., 100W". The winding type is bobbin.
As part of the 1750 Series, the 1750X was designed for drop in replacement of original units and to look similar to original factory units where possible. Material used and design specifications were kept as close as possible to the original part to preserve the stock tone.
- Power rating: 100 W, push-pull
- Primary: 1,700 ohms C.T.
- Winding: bobbin
- Shipping weight: 4 lbs (1.81 kg)
The 1750X carries UPC 623980094243 and UNSPSC 39121301, and it is RoHS and REACH compliant. Amp model names are listed for reference only.
Ideal For
- Replacing the output transformer in a Marshall JCM 900
- 100 W push-pull tube amplifier repair
- Guitar amp restoration using a drop in replacement
Overview
| Series | 1750 Series (Tube Guitar Amplifier - Output Transformers) |
| Product Type | Tube guitar amplifier output transformer |
| Manufacturer Description | Output transformer, guitar amp, 126, 500, 2,000 ohm pri., 2, 4, 8, 16 ohm sec., 100W |
| Manufacturer Short Description | OUTPUT 100W JCM 900 MARSHALL |
Electrical
| Power Rating | 100 W |
| Amplifier Type | Push-Pull |
| Primary Impedance | 1,700 ohms C.T. |
| Secondary Impedance (Part Page) | 2, 4, 8, 16 ohms |
| Secondary Impedance (Series Ordering Table) | 4, 8, 16 ohms |
Identifiers
| UPC | 623980094243 |
| UNSPSC | 39121301 |
Compatibility
| Original Amp Manufacturer | Marshall |
| Amp Model Name (Ref. Only) | JCM 900 |
Packaging & Shipping
| Shipping Weight | 4 lbs (1.81 kg) |
Construction & Finish
| Appearance | Constructed to look similar to original factory units (where possible) |
| Winding Type | Bobbin |
| Design Intent | Designed for drop in replacement of original units |
| Materials & Design | Material used and design specifications 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 amplifier is the 1750X listed for?▾
It is listed for the Marshall JCM 900. Amp model names are given for reference only.
What is the primary impedance of the 1750X?▾
The part attributes and series table list 1,700 ohms center-tapped.
Which speaker impedances does it support?▾
The part page lists 2, 4, 8 and 16 ohm secondaries; the series ordering table lists 4, 8 and 16 ohms.
What is the power rating?▾
100 W in push-pull service.
Is it paper or bobbin wound?▾
The 1750X is bobbin wound.
