Transformers & Chokes

• Vertical Mount. For Horizontal Mount, see P-T263-Z
• Primary 115 VAC, 60 Hz. - except as noted
• Enclosed, 4 hole, chassis mount.
• Minimum 6" long leads.
• Units can be run full wave bridge or full wave C.T.
• Class A insulation (105 degrees C).
• Hi-Pot test of 2,000V RMS.
• Conservative designs - CSA certified (209651).

Specifications Audio Watts: 8 watts Primary Impendance (Ohms): 10K center-tapped Secondary Impendance (Ohms): 2/4/8 Mounting centers: 2-3/8u-bracket Weight: 1.0 lbs. Cat. No. Dimensions (Inches) A B C D G Mtg. Hole 125H 2.81 1.4 1.7 2.36 0.187

• Horizontal mount. For Vertical Mount, see P-T263-X
• Primary 117 VAC, 50/60 Hz. - except as noted
• Enclosed, 4 hole, chassis mount.
• Minimum 6" long leads.
• Units can be run full wave bridge or full wave C.T.
• Class A insulation (105 degrees C).
• Hi-Pot test of 2,000V RMS.
• Conservative designs - CSA certified (209651).
• For Vertical Mount, see P-T263-X

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.

Fender® Original '59 Bassman Reissue output transformer. Equivalent to #036485.

• Primary 115 VAC, 60 Hz.
• Secondary 6.3 C.T.
• All secondaries center tapped, VAC (RMS)
• Enclosed, 4 hole chassis mount.
• Minimum 6" long leads.
• Dual bobbin design - no electrostatic shield required.
• Class B insulation (130 degrees C).
• Hi-Pot test of 2,000V RMS.
• UL listed (# E50394) & CSA certified (209651).

Replacement for Vox AC30 vintage


Inductance ± 15%
30 H


D.C. Current
100 mA


Features:

• Designed for drop in replacement of original units.
• Physically, parts were designed to look similar to original factory units (where possible).
• Inductances measured at rated D.C. current.
• Material used & design specs. were kept as close as possible to the original part to preserve the stock "tone".
• Units are vacuum impregnated with polyurethane varnish for quiet and long life operation.

• 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".

Replacement for Bassman heads. Equivalent to #125A13A & #022871.

Genuine Marshall™ output transformer for JTM45.

Genuine Marshall™ 100 watt output transformer for JCM900 and JCM2000.

Replacement for Marshall Plexi JCM 800.


Inductance ± 15%
40 H


D.C. Current
50 mA


Features:

• Designed for drop in replacement of original units.
• Physically, parts were designed to look similar to original factory units (where possible).
• Inductances measured at rated D.C. current.
• Material used & design specs. were kept as close as possible to the original part to preserve the stock "tone".
• Units are vacuum impregnated with polyurethane varnish for quiet and long life operation.

• Primary 115 VAC, 60 Hz.
• Secondary 5 C.T.
• All secondaries center tapped, VAC (RMS)
• Enclosed, 4 hole chassis mount.
• Minimum 6" long leads.
• Dual bobbin design - no electrostatic shield required.
• Class B insulation (130 degrees C).
• Hi-Pot test of 2,000V RMS.
• UL listed (# E50394) & CSA certified (209651).

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.

• Designed for push-pull tube output circuits.
• Enclosed (shielded), 4 slot, above chassis Type 'X' mounting.
• Frequency response 30 Hz. to 30 Khz. at full rated power (± 1 db max. - ref.

• Primary 115 VAC, 60 Hz.
• Designed for small power or bias supplies, test equipment, preamps etc.
• Models P-T261C6, P-T261E6, and P-T261G6 can also be used with full wave C.T. rectifiers.
• Economical , two hole, channel bracket, chassis mount.
• Minimum 5" long leads.
• Convenient 6.3 filament/auxiliary winding.

• Replacement for Vox amplifiers
• 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".

• Primary: Universal - 100, 110, 120, 200, 220,230, 240 VAC 50/60 Hz.
  
  • NOTE: units are designed to operate with BOTH primary windings engaged.
  • See primary wiring information under resources.
• Bias Tap: 50 VAC tap from high voltage secondary C.T. (except part number P-T379WX - uses a separate 60VAC 0.2 Amp winding).
• Highpot tested: 2,000 VAC
• Faraday Copper Primary Shield: Our electrostatic shield reduces the capacitive coupling from the primary - greatly attenuating higher frequency current coupling to the secondaries (shield is internally grounded to the end bell).
• Windings: Concentric wound for low stray field and low noise.
• Models: This series is an upgrade from our P-T263-X range of units PLUS 2 models designed specifically for 300B tubes (Part Number P-T300BX) and 2A3 tubes (Part Number P-T302AX).
• Finish: Black powder paint to match our P-T1650X series of output transformers Units can be run full wave bridge or full wave C.T.
• Conservative designs - CSA certified (209651).

Fender Original Hot Rod DeVille Power Transformer. Equivalent to #041752.

• Primary 115 VAC, 60 Hz.
• Secondary 10 C.T.
• Center tapped secondary.
• Open style, channel bracket, two hole chassis mount.
• Minimum 6" long leads.
• Dual bobbin design - no electrostatic shield required.
• Class B insulation (130 degrees, C).
• Hi-Pot test of 2,000 V RMS.
• UL listed (# E50394) & CSA certified (# LR3902).

• Primary 115 VAC, 60 Hz.
• Secondary 5 C.T.
• Center tapped secondary.
• Open style, channel bracket, two hole chassis mount.
• Minimum 6" long leads.
• Dual bobbin design - no electrostatic shield required.
• Class B insulation (130 degrees, C).
• Hi-Pot test of 2,000 V RMS.
• UL listed (# E50394) & CSA certified (# LR3902).

Replacement for Vox AC30 reissue


Inductance ± 15%
5 H


D.C. Current
150 mA


Features:

• Designed for drop in replacement of original units.
• Physically, parts were designed to look similar to original factory units (where possible).
• Inductances measured at rated D.C. current.
• Material used & design specs. were kept as close as possible to the original part to preserve the stock "tone".
• Units are vacuum impregnated with polyurethane varnish for quiet and long life operation.

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.

• Replacements for Vox 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".