Hammond 291GX Ampeg B25 55 Watt 120V Power Transformer

The 291GX is a replacement power transformer for the Ampeg B25, the 55 watt amplifier, and cross-references Ampeg No. 12XA. It is part of the guitar amp replacement transformer range and is intended for technicians and owners keeping a B25 in service.

It is a domestic power transformer rated for 120V, 60 Hz mains, built on a bobbin core. Because it is a 60 Hz domestic design, it is intended for North American supply voltages.

Physically, parts were designed to look similar to original factory units where possible, and the materials and design specifications were kept as close as possible to the original part to preserve the stock tone. Detailed electrical specifications and dimensions are given on the part drawing.

The 291GX has a shipping weight of 11.65 lbs (5.28 kg). It is marked RoHS compliant and REACH compliant, and is identified by UPC 623980474731 and UNSPSC 39121301.

The Ampeg No. 12XA cross-reference is the quickest way to confirm the 291GX matches the transformer in a B25 chassis before ordering.

Hammond Mfg. is not affiliated with Ampeg; amplifier model names are trademarks of the amplifier companies and are listed for reference only.