Transformer - Hammond, Output for Fender, 50W 4.2kΩ, general

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Transformer - Hammond, Output for Fender, 50W 4.2kΩ, general

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General Replacement Equivalent to manufacturer part number #125A13A and #022871 Warning: Not all amplifier models of the same name use the same transformer model. Please make sure the amplifier transformer which you are replacing has a Fender number matching the equivalent Fender transformer number listed here. Specifications:

Primary: 4,200 C.T.Ω
Secondary: 2Ω, 4Ω, 8Ω
Power: 50 W
Amp Type: Push-Pull
Core Type: Paper


  • Designed for drop in replacement of original units
  • Physically, parts were designed to look similar to original factory units (where possible).
  • Material used and design specs were kept as close as possible to the original part to preserve the stock "tone".

Wiring Diagram:

Wiring Diagram
RoHS Compliant
Item ID:
Replacement Type:
Product Measurements
Fastener Hole Diameter0.187 in.
Item Height3.5 in.
Item Length4.05 in.
Item Width3.05 in.
Mounting Center Distance A3.5 in.
Mounting Center Distance B2 in.
Packaging Information
Packaging Dimensions8.5 in. × 8.25 in. × 8.5 in.
Weight (Packaging)5.35 lbs.

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