Transformers & Chokes

One Electron

One Electron chokes and transformers are designed by John Atwood, to fill the need for high-quality yet affordable audio transformers and chokes that are not normally available elsewhere.


Marshall guitar amplifiers are among the most recognized in the world. They are known for their Marshall "crunch".
P-TBFT-1B Transformer - One Electron, BFT-1B, Power
The BFT-1B from One Electron was designed to power a stereo amplifier using UBT-1's in each channel but will also power an 80 watt push-pull tube amplifier. The BFT-1B is slightly larger than earlier versions of the BFT-1, allowing lower flux density and cooler operation. The tapped high-voltage windings and three filament windings provide flexibility in design. An electrostatic shield between the primaries and secondaries reduces power-line noise coupling. The primary arrangements allows use on virtually any power grid in the world.
P-TM-P100 Transformer - Marshall Replacement, Power, 100 W
100 watt replacement power transformer for Marshall. Good replacement for JMP and JCM800s for EL34! Built to vintage specs with exact interleave ratios and materials. Gives great classic sound. Great for upgrading later issue Marshall amps.
P-TM-P50 Transformer - Marshall Replacement, Power, 50 W
A good upgrade for later issue Marshall amplifiers. Good replacement for JMP and JCM 800s for EL34!
P-TM950P Transformer - Marshall, Power, 50 W, for JCM 900
Genuine Marshall™ 50 watt power transformer for JCM900.
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