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

Marshall guitar amplifiers are among the most recognized in the world. They are known for their Marshall "crunch".
P-RC-3 Choke - One Electron, Audio, PRC-3, 225H for Preamp Output
The PRC-3 audio choke from One Electron was designed as a plate load for the output of either a high quality line amplifier or a phono preamp.
$69.95
P-T1750X-MARSHALL Transformer - Hammond, Output, replacement for Marshall
  • Replacements for Marshall Amps
  • Designed for drop in replacement of original units.
  • Physically, parts were designed to look similar to original factory units (where possible).
  • Material used & design specs. were kept as close as possible to the original part to preserve the stock "tone".
Starting at $37.50
P-TM45O Transformer - Marshall, Output, for JTM45
Genuine Marshall™ output transformer for JTM45.
$135.00
P-TM9100O Transformer - Marshall, Output, 100 W, for JCM900
Genuine Marshall™ 100 watt output transformer for JCM900 and JCM2000.
$139.95
P-TM950O Transformer - Marshall, Output, 50 W, for JCM 900
Genuine Marshall™ output transformer for JCM900 and JCM2000.
$117.80
P-TMJTM30-O Transformer - Marshall, Output, 30 W, for JTM30
Genuine Marshall™ 30 watt output transfomer for JTM30.
$42.95
P-TUBT-1 Transformer - One Electron, Output, 1600 Ω to 16/8/4 Ω
The UBT-1 from One Electron is a low-impedance single-ended output transformer intended for parallel combinations of tubes running a B+ voltages of 250 to 325 volts, such as: two or three EL34s (triode connected), three 2A3s, two 300Bs, two 6AS7s, etc., as well as single sweep tubes run in 'enhanced-triode' mode, resulting in 10 to 15 watts of output power.
$125.00
P-TUBT-2 Transformer - One Electron, Output, 4800 Ω to 16/8/4 Ω
The UBT-2 from One Electron is the same size and power (15 watts) as the UBT-1, but has a higher primary impedance suitable for single tubes running at B+ voltages of 400 to 500 volts, such as: 50, WE 300B,etc.
$129.95
P-TUBT-3 Transformer - One Electron, Output, 3000 Ω to 16/8/4 Ω
The UBT-3 from One Electron is the same size and power (15 watts) as the UBT-1, but has a primary impedance suitable for single or paralleled tubes running at B+ voltages of 300 to 400 volts, such as: 2A3, WE 300B, 50, etc.
$109.95
P-RC-1 Choke - One Electron, Audio, PRC-1, for Shunt Feed SE Output
The PRC-1 audio choke from One Electron was designed for shunt-feed single-ended output applications, but is also useful where quality inductive loads are needed or as high-quality filter chokes.
$85.00
P-RC-2 Choke - One Electron, Audio, PRC-2, for Shunt Feed SE Output
The PRC-2 audio choke from One Electron was designed for shunt-feed single-ended output applications, but is also useful where quality inductive loads are needed or as high-quality filter chokes.
$69.95
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