Hammond 290EEBZ Multi-Voltage 65 Twin Reverb Reissue Transformer

The 290EEBZ is a Hammond 290 Series power transformer described as a replacement for a guitar amp, and listed in the Fender section of the ordering table for the 65 TWIN REVERB REISSUE. Its primary is rated 120/210/220/230/240V @ 50/60 Hz, which suits amps used or sold outside 120V regions.

Secondaries are 340V @ 500 mA for the high-voltage supply, 50V @ 100 mA, and 6.3V @ 6A for tube heaters, the same values listed for the 120V-only 290EBZ. The ordering table lists bobbin winding.

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.

With five primary taps and 50/60 Hz operation, one part covers several regional supplies, which can simplify service for amps that move between markets. Before fitting, confirm the tap that matches the local mains and compare the secondary ratings with the original transformer or the amp schematic, since model references are published for reference only.

The 290EEBZ ships at 7.65 lbs (3.47 kg). It is RoHS and REACH compliant and identified by UPC 623980474892 and UNSPSC 39121301. Amp model references are for reference only.