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291DX 120V generic power transformer for tube guitar amplifiers

Hammond 291DX 120V 650Vct 230mA Generic Amp Power Transformer

Hammond Manufacturing|

MPN: 291DX

|

UPC: 623980252360

Available on Backorder

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224-955-1644
Ground Shipping · $22.21Ships as soon as stock arrives. We'll confirm the lead time before your card is charged.
New, with full manufacturer warranty

Key Features

  • Short description: REPLACED WITH 290DX
  • 120V @ 60 Hz primary
  • 650Vct @ 230 mA high voltage secondary
  • 50V bias winding
  • 6.3Vct @ 4A and 5V @ 3A secondaries
  • Bobbin winding; 8 lbs (3.63 kg); RoHS and REACH compliant

The 291DX is a 290 Series tube guitar amplifier power transformer described as a replacement for Fender guitar amps, with the amp model listed as GENERIC. The manufacturer's short description reads REPLACED WITH 290DX, identifying the successor part number for anyone cross-referencing an existing 291DX.

It has a 120V @ 60 Hz primary. The high voltage secondary is 650Vct @ 230 mA, with a 50V bias winding, a 6.3Vct @ 4A winding and a 5V @ 3A winding. The winding type is listed as bobbin.

Like every 290 Series part, it was designed for drop in replacement of the original unit, physically designed to look similar to the original factory unit where possible, and built with materials and design specs kept as close as possible to the original part to preserve the stock tone.

Shipping weight is 8 lbs (3.63 kg). The 291DX is RoHS and REACH compliant, carrying UPC 623980252360 and UNSPSC 39121301. The 240V @ 50/60 Hz counterpart is the 291DEX. Because the amp model is listed as GENERIC, match the 650Vct, 50V bias, 6.3Vct and 5V winding ratings to your amplifier's requirements before ordering, and note the 290DX successor listed in the short description.

Ideal For

  • Generic 120V tube guitar amp power transformer replacement
  • Cross-reference to the 290DX
  • Tube amp repair

Overview

Series290 Series (Tube Guitar Amplifier - Power Transformers, Replacement & Upgrades)
Product TypePower transformer, replacement for Fender guitar amp, 290 series
Replacement Part290DX
Short DescriptionREPLACED WITH 290DX

Electrical

Secondary 1650Vct @ 230 mA
Secondary 250V Bias
Secondary 36.3Vct @ 4A
Secondary 45V @ 3A
Primary Volts120V @ 60 Hz

Identifiers

UPC623980252360
UNSPSC39121301

Amplifier Reference

Amp ManufacturerFender
Amp Model (Ref. Only)GENERIC

Packaging & Shipping

Shipping Weight8 lbs (3.63 kg)

Construction & Finish

WindingBobbin
AppearanceDesigned to look similar to original factory units (where possible)
Design IntentDesigned for drop in replacement of original units
Materials & Design SpecsKept as close as possible to the original part to preserve the stock "tone"

Compliance & Certifications

RoHS CompliantYes
REACH CompliantYes

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Frequently Asked Questions

Has the 291DX been replaced?▾

The manufacturer's short description reads REPLACED WITH 290DX.

What is the primary voltage?▾

120V @ 60 Hz.

What are the secondary ratings?▾

650Vct @ 230 mA, 50V bias, 6.3Vct @ 4A and 5V @ 3A.

What winding type is it?▾

Bobbin.

Is there a 240V version?▾

Yes, the 291DEX.