Transformers & Chokes

• Replacements for Fender 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".

• 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-UP for upgraded 120 V transformers, P-T290-FENDER-240 for 240 V transformers

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

Features

• Economical "open bracket" - channel mount.
• Tolerance of 15% on both inductance & resistance.
• Inductances measured at rated D.C.

Original Fender® reverb driver for Pro Reverb. Replacement for #037099. Warning: Not all amplifier models of the same name use the same transformer model. Please make sure the amplifier transformer which you are replacing has a Fender number matching the equivalent Fender transformer number listed here.

Output transformer upgrade for the Fender® part numbers 125A35A, 125A3A, and 022905 as used in the:

• Bronco (AA764, AB764, Blackface, Silverface)
• Champ (Tweed, 5C1, 5E1, 5F1, AA764, Blackface, Silverface, Vibro Blackface)
• Harvard (6G10)
• Princeton (Tweed, 5B2, 5C2, 5D2, 5E2, 5F2, 5F2A)

This upgraded transformer features both 4 ohm and 8 ohm taps on the secondary. The primary has two impedance options for lower voltage (5K) and higher voltage (8k) models.

• 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).

Replacement reverb driver transformer for the Fender® part numbers 125A20B, 022921, and 037099. This is the standard reverb driver transformer used in most Fender amps that use a 12AT7 and transformer driven 4AB3C1B tank. Found in countless Fender® models including original and reissues of the following:

• Fender Princeton Reverb
• Fender Deluxe Reverb
• Fender Vibrolux Reverb
• Fender Pro Reverb
• Fender Super Reverb
• Fender Twin Reverb
• Fender Quad Reverb
• Fender Super Six Reverb
• Fender Vibrosonic
• Many others

Power transformer replacement for the Fender® part numbers 125P1B, 022772, and 66079B. This transformer offers two different B+ options for lower voltage or higher voltage builds. This transformer is used in versions of the:

• Bronco
• Champ
• Princeton
• Princeton Reverb
• Vibro Champ

Features

• 275V or 325V (650/550 VCT) B+ options at 100mA
• Center tapped 6.3V filament at 2.25A
• 5V filament supply at 3A
• For 120V 60Hz primary
• Standard 2.5” x 2” mounting centers

Equivalent to Stancor A53-C. 1:3 ratio overall. Center tapped secondary may be used for push-pull grids.Specifications Max. Primary Current: 10 mA Impedance Primary to Secondary (Ohms): 10,000 to 90,000

Specifications

• Power: 8 W
• Primary Impedance: 5,000 Ω single-ended
• Secondary Impedance: 8 Ω
• Primary DC Resistance (Red to Blue): 230 Ω
• Mounting Centers: 2.375"
• Mounting Type: U-bracket
• Weight: 0.7 lbs

Replacement choke for the Fender® part numbers 125C3A and 022707 as used in the Deluxe, Deluxe Reverb, Vibrolux, Vibrolux Reverb, 1964 Blackface 6G15 Reverb, and others. This choke is rated 4H 50mA DC.

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.

Replacement for Fender Bandmaster, Dual Showman, Pro Reverb, Twin Super Equivalent to Manufacturer part number 125C1A & 022699 Specifications:

• Inductance ± 15%: 4 H
• D.C. Current: 90 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.

Replacement choke for the Fender® part numbers 125C1A, 022699, and 036468 as used in the Bandmaster, Dual Showman, Pro Reverb, Twin Reverb, Super Reverb, and others. This choke is rated 4H 90mA DC.

Replacement for Fender Deluxe, Deluxe Reverb, Vibrolux, Vibrolux Reverb Equivalent to Manufacturer part number 125C3A & 022707 Specifications: Inductance ± 15% 4 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: 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).

• Open style, chassis mount transformers with a 115V 60Hz or 117 50/60Hz primary and a 6.3V center tapped secondary.

• 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.

• 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".

• 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".

Coil assembly for P-T156. Use your own iron to preserve mechanical fit. Coil window is 1/2 x ½".

• Designed for general purpose or replacement use (not Hi-Fi), in single ended, tube output circuits.
• Frequency response: 100 Hz. - 15 Khz (± 1db max. - ref. 1 Khz). (For full frequency response (20 Hz. to 20 Khz.) - see P-T1627SE).
• For push-pull output use, see P-T125A - optimized for push-pull tube output circuits.
• Open style with minimum 12" long primary & secondary leads leads.
• All sizes use butt stacked cores (using 29M6 steel) with an air gap, to reduce D.C. core saturation.
• Primary impedance range from 2,500 to 10,000 Ohms.
• Secondary impedance range from 4 to 32 Ohms.

Part No.
Audio Power
Max D.C. Bias
Dimensions (Inches)


A
B
C
D
E
G Mtg.

An Isolation Power Transformer for isolating equipment from direct connection to the power line. The transformer is constructed with non-concentrically wound coils. The primary and secondary are wound on separate arbors, then assembled on a laminate core side-by-side separated by insulation. This prevents electrical connection, under normal or overload conditions, between the primary and secondary windings.

Specifications Output 8 W Primary Impedance 4,000 to 9,000 Ω Mounting Centers 2.375" Weight 0.7 lbs