Marshall JMP 50W Plexi/JTM50 Style, 50W Laydown Power 40-18089

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  • Item #: 40-18089

Vintage Constructed Amplifier Transformers by Magnetic Components, Inc.

Vintage Spec, Paper Wound!
Replacement Tube Amp Transformer
Proudly manufactured in the U.S.A.

Our Part# Style Series Type Wattage Mains Voltage
40-18089 Marshall Vintage Power 50W 120/220/240V


Alternates: 40-18054 (Upgrade)
Reference#: 1202-118
Used In: JMP 50W Plexi & JTM50
Description: Great vintage era type constructed, paper layer wound power transformer for JMP 50W Plexi and JTM50 style amplifiers requiring laydown mountings! The multi-national primary voltages of 120V, 220V & 240V are featured here. This is great for for use with the solid state rectified JMP 50W Plexi style amplifiers. Also, it has a 5V secondary that can be used in tube rectified JTM50 style amplifiers as well. The 5V secondary can also be used to power switching relays.
Click Here for Specifications and Hook-up Diagram
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General Features:
  • Paper layer wound like the vintage era originals
  • Made in USA by Magnetic Components, Inc.
  • Manufactured using proper construction methods
  • Made with premium materials
  • Proper mountings / No chassis drilling required on most
  • Made with pre-tinned "Topcoat" PVC appliance wire for soldering ease
  • RoHS Compliant
  • Two exclusive series: ClassicTone Vintage and ClassicTone Plus
The Vintage Series offers Fender* and Marshall* type amplifier transformers made with true-to-original specifications, vintage era construction methods and high quality materials. This series features correct mountings and requires no chassis hole drilling!
The Plus Series offers Fender* and Marshall* type amplifier transformers for general replacement, upgrades and additional features such as international voltage taps. These are still manufactured using the same fine construction methods and premium materials as our Vintage series transformers.
These may require chassis modifications...see specifications for details.

Quantity Discounts are Available. Contact Sales for additional information.


Return Policy
Because these are electronic components, returns are only accepted on Damaged, DOA or Unused units only.
Return shipping costs are the responsiblity of the purchaser.
Prior approval is required for all returns. Contact Sales for an RMA Number.
Returns are subject to a restocking fee equal to any Credit Card, eBay or Paypal fees associated with the original transaction.


*Disclaimer: Magnetic Components, Inc. is not affiliated with Fender Musical Instruments Corp. and Marshall Amplification.
**All of the above listed amplifier models are trademarks of Fender Musical Instrument Corp. or Marshall Amplification.


Price $106.42
Availability Out-of-Stock