Transformer - Marshall Replacement, Power, 100 W

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Transformer - Marshall Replacement, Power, 100 W

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100 watt replacement power transformer for Marshall. Good replacement for JMP and JCM800s for EL34! Features a paper bobbin. Built to vintage specs with exact interleave ratios and materials. Gives great classic sound. Great for upgrading later issue Marshall amps.

Specification Sheet:

Specification Sheet

Wiring Diagram:

Wiring Diagram
RoHS Compliant
Item ID:
Replacement Type:
Product Measurements
Audio Power100 W
Item Height4.543 in.
Item Length3.758 in.
Item Width4.21 in.
Mounting Hole Center to Center A3.22 in.
Mounting Hole Center to Center B3.16 in.
Mounting Hole Diameter0.215 in.
Packaging Information
Packaging Dimensions4.6 in. × 4.3 in. × 3.9 in.
Weight (Packaging)8.397 lbs.
GIF: Specification SheetAll Models
GIF: Wiring DiagramAll Models

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Specifications, Files, and Documents

GIF: Specification Sheet Specification Sheet12.54 KB
GIF: Wiring Diagram Wiring Diagram22.79 KB

Questions and Answers

Click each question to see its answers.
Asked by Anonymous on May 9th, 2017.
Matt H
May 9th, 2017
Please email us directly for international shipping options at:
Asked by Anonymous on July 7th, 2017.
Matt H
July 7th, 2017
Please contact us at to help you find the correct transformer.
Asked by Anonymous on December 13th, 2017.
Matt H
December 13th, 2017
We are unsure if this will work with your amp. Please contact us a so we can help you find the correct part.
Asked by Anonymous on July 10th, 2018.
July 10th, 2018
Staff Member
We can not verify that this is the correct transformer for your amp, as the only given models are the JMP and the JCM800. You may want to consult Marshall direct.
Asked by Anonymous on August 23rd, 2018.
August 24th, 2018
Staff Member
That information is not provided by the manufacturer and you will need to contact Marshall direct to verify that information.

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