Hammond 290CG Marshall TSL100 Replacement Power Transformer

The 290CG is a power transformer in the 290 Series of tube guitar amplifier power transformers, listed in the series' Marshall table for the TSL100 amplifier (reference only). It is intended for technicians and owners replacing the power transformer in that Marshall amplifier.

The 290CG has a 120/240 VAC, 50/60 Hz primary, so it can be wired for either mains standard. Its secondaries are rated 338V @ 450 mA (Secondary 1), 6.3Vct @ 7A (Secondary 2) and 43Vct @ 150 mA (Secondary 3). The winding style is bobbin. No similar amp part numbers are listed. The 6.3Vct winding is rated at 7A, and the 43Vct winding is rated at 150 mA.

The 290 Series was developed for drop in replacement of original units. Parts were designed physically to look similar to original factory units where possible, and the material used and design specs were kept as close as possible to the original part to preserve the stock "tone".

The part page short description for the 290CG is simply "POWER", and no shipping weight is listed. It is RoHS and REACH compliant, and is identified by UPC 623980184869 and UNSPSC 39121301. Confirm the shipping weight before arranging freight.