Transformers & Chokes

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.

Replacement for Fender Vibrolux and Tremolux Blackface AA763 (1963-1966).
Equivalent to #125P26A & # 036483. 35 Watts.

• Enclosed, 4-hole mount chokes
• Tolerance of 15% on both inductance & resistance.
• Inductances measured at rated D.C. current.
• Minimum 8" long leads.
• Units will exhibit less inductance at slightly higher currents or more at lower currents.
• Perfect for high voltage power supply filtering, case matches power transformers & tube audio output transformers.
• Units are vacuum impregnated with polyurethane varnish for quiet and long life operation.
• For more sizes and voltages (open - bracket mount type) - see P-T154-P-T156-X
• Operating temperature range is -40C to 85C

• 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).

Replacement for Fender Champ, VibroChamp, and Bronco amps, 4 ohms.
Equivalent to #125A35A & #022905.

Fender Original Blues Junior Power Transformer. Equivalent to #049967.

• Open style, chassis mount transformers with a 115V 60Hz primary and a 5V center tapped secondary.

• 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".
• See P-T290-FENDER-120 for 120 V transformers, P-T290-Fender-120-UP for upgraded 120 V transformers

Warning: Not all amplifier models of the same name use the same transformer model.

Great for upgrading later issue Marshall™ amps. Gives great classic sound.
Good replacement for JMP and JCM 800s. for EL34!

Replacement for Pro Reverb, Tremolux, Vibrolux, Bandmaster, and Vibroverb. Equivalent to #125A6A & #022848.

Developed in response to requests from the Collins Collectors Association"this is a matching audio transformer for older equipment with 600 ohm audio outputdriving modern speakers. Or for "classic" high impedance speakers used with newer equipmentsimply swap primary for secondary (ie...4 or 8 ohm input and 600 ohms out). Key Features Isolation unit: (i.e.

• Open style, chassis mount transformers with a 115V 60Hz primary and a 2.5V center tapped secondary.

Use as a standoff, coil/choke form, or antenna coil.

Developed in response to requests from RCA Radiola III-A collectors. The original transformers are usually found with open" windings due to the fine wire and high turns usedcoupled with age. This is a universal replacement type - it will replace any of the three audio transformers used (1st audio driver2nd audio-phase splitter stage or output transformer)by correctly connectiong the 5 lugs. A pin out and connection diagram is included. The cases from the old transformer will fit this new unit. The terminal board is a duplicate of the original.
Key Features

• Primary: 4000 turns, #41 wire (lugs 4 & 2)
• Secondary: 12000 turns C.T., #41 wire (lugs 5 & 1lug 3 is C.T. connection)
• Termination: Solder lugs on a 1 3/4" x 1" terminal board with 4-5" connecting leads
• Size: 1-7/8" long x 1-11/16" wide x 1-3/8" deep
• Lamination Core Size: 5/8" x 1/2"
• Weight: 7 oz.

• 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

Includes: 3 pole, 3 position rotary switch, ¼" output jack and black chicken head knob. Hammond 1600A series transformers provide 'easy wire secondary' impedances of 4, 8, or 16 ohms. We now offer a selector switch, pre-wired and complete with ¼" output jack. Follow simple instructions provided to wire transformer secondary to switch, mount switch and ¼" jack in separate 3/8" diameter holes in chassis and you'll easily be able to select output impedance as necessary. (Not recommended for 1645A or 1650G) (See P-H1600 for a selector switch to work with Hammond 1600 series transformers.)

• Designed for drop in replacement of original units. Upgraded units with variable voltage.
• 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".
• See P-T290-FENDER-120 for 120 V basic transformers, P-T290-FENDER-240 for 240 V transformers

Warning: Not all amplifier models of the same name use the same transformer model.

• Designed for general purpose or replacement use in push-pull or phase inverter tube driver circuits.
• Should not be used for single ended applications. They have no gap for DC bias current present in SE mode.
• Open style with minimum 5" long primary leads.
• Minimum frequency response 150 Hz. - 15 Khz (+/- 1db max. ref. 1 Khz.) at full rated power.
• Core material is Grain Oriented Silicon Steel.

• 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.

• 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".

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

Open style, chassis mount transformers with a 115V 60Hz primary and a 12V center tapped secondary.

• Open style, chassis mount transformers with a 115V 60Hz or 117 50/60Hz primary and a 12.6V center tapped secondary

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