Project/Fender Style, 5W/15W, Upgrade Power 40-18109

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  • Item #: 40-18109

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
40-18109 Project / Fender Plus Power 5W / 15W 100/120/220/230/240V


Alternates: 40-18027 (Basic 120/240V Version)
Reference#: 125P1B, 022772, 66079B 
Used In: Tweed Champ**, Blackface Champ**, Silverface Champ**, Champ AA764**, Blackface Vibro-Champ**, Silverface Vibro-Champ**, Vibro-Champ AA764**, Tweed Princeton**,  Brown Princeton**, Blackface Princeton**, Silverface Princeton**, Princeton AA964**, Blackface Princeton Reverb**, Silverface Princeton Reverb**, Princeton Reverb AA1164**, Princeton Reverb  AA764**, Princeton Reverb B1270**,  Bronco**, Blackface Bronco**, Bronco AA764**, Bronco AB764**, 6G10 Harvard**
Description: This is the ultimate upgrade and/or general purpose power transformer for all of the above mentioned amp models and has many of the features of the 40-18027 upgrade transformer but has a few additional features as well. It features all world voltages of 100/120/220/230/240V. It has HV winding ratings of 550, 630 and 660V CT @ 100mA. Voltage compensated for Tweed Series amps as well as later models. Heavier current capacity (100mA vs. 70mA) provides cooler operation and better regulation. The center tap on the heaters is a feature. It also has additional features including a larger stack of the best available M-6 steel for very high performance and even cooler running operation. Furthermore, it has a static shield and flux band for low noise and hum. This is the very best and most versatile paper layer wound power transformer of its kind.
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 $101.06
Availability Out-of-Stock