Transformers & Chokes

P-T1760H Transformer - Hammond, Output upgrade for Fender, 20W 6.6kΩ
Replacement for Deluxe, Deluxe Reverb Upgraded unit allows for more versatility by added secondary connections that did not exist on the original units. Equivalent to manufacturer part number #125A1A & #022640 Warning: Not all amplifier models of the same name use the same transformer model.
$39.92
P-T124B Transformer - Hammond, Audio Interstage, 10K PRI, 90K SEC
  • Designed for general purpose or replacement use in single ended or phase inverter tube driver circuits.
  • Open style 2 point mount with minimum 5" long primary leads.
  • Core material is 49% Nickel Steel laminations for better low end response.
  • Operates in the 150 Hz - 15 KHz range.

Specifications
Primary Impedance
10,000 Ω
Secondary Impedance
90,000 Ω CT
Output Power
5 W
Primary DC Resistance
405 Ω
Secondary DC Resistance
1,525 Ω
Primary Inductance
28 H
Secondary Inductance
108 H
Leakage Inductance
0.11 H
Primary Impedance
175 kΩ
Secondary Impedance
$48.25
P-T124D Transformer - Hammond, Audio Interstage, 7K PRI, 15.8K SEC
  • Designed for general purpose or replacement use in single ended or phase inverter tube driver circuits.
  • Open style 2 point mount with minimum 5" long primary leads.
  • Core material is Grain Oriented Silicon Steel.
  • Operates in the 150 Hz - 15 KHz range.

Specifications
Primary Impedance
7,000 Ω CT
Secondary Impedance
15,800 Ω CT
Output Power
5 W
Primary DC Resistance (Blue-Red)
218 Ω
Primary DC Resistance (Red-Brown)
236 Ω
Secondary DC Resistance (Green-Black)
297 Ω
Secondary DC Resistance (Black-Green)
394 Ω
Primary Inductance
6.45 H
Secondary Induct
$38.60
P-T124E Transformer - Hammond, Audio Interstage, 15K PRI, 33.8/135K S
  • Designed for general purpose or replacement use in single ended or phase inverter tube driver circuits.
  • Open style 2 point mount with minimum 5" long primary leads.
  • Core material is Grain Oriented Silicon Steel.
  • Operates in the 150 Hz - 15 KHz range.

Specifications
Primary Impedance
15,000 Ω CT
Secondary Impedance (Parallel)
33,800 Ω CT
Secondary Impedance (Series)
135,000 Ω CT
Output Power
5 W
Primary DC Resistance (Blue-Red)
373 Ω
Primary DC Resistance (Red-Brown)
355 Ω
Secondary DC Resistance (Green-Black)
1,630 Ω
Secondary DC Resistance (Black
$46.65
P-T125A Transformer - Hammond, Universal Push-Pull, 3 W, 25 mA
  • Designed for general purpose or replacement use in push-pull tube output circuits. (For single ended use, see our 125 SE series - optimized for single ended tube output circuits).
  • Frequency response: 150 Hz. - 15 Khz (± 1db max. ref. 1 Khz).
  • Open style with minimum 5" long primary leads, secondary solder lugs for convenient secondary connections.
  • Tables provided with transformer listing 90 pre-calculated impedance ratios.

Dimensions (Inches) Mounting Hole Part No. Audio Watts Max. D.C.
$36.82
P-T125ASE Transformer - Hammond, Universal Single Ended, 3 W, 25 mA
  • 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.
$45.84
P-T125BSE Transformer - Hammond, Universal Single Ended, 5 W, 45 mA
  • 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.
$48.10
P-T125C Transformer - Hammond, Universal Push-Pull, 8 W, 60 mA
  • Designed for general purpose or replacement use in push-pull tube output circuits. (For single ended use, see our 125 SE series - optimized for single ended tube output circuits).
  • Frequency response: 150 Hz. - 15 Khz (± 1db max. ref. 1 Khz).
  • Open style with minimum 5" long primary leads, secondary solder lugs for convenient secondary connections.
  • Tables provided with transformer listing 90 pre-calculated impedance ratios.

Dimensions (Inches)
Mounting Hole
Part No.
Audio Watts
Max. D.C.
$38.60
P-T125CSE Transformer - Hammond, Universal Single Ended, 8 W, 60 mA
  • 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 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.
$49.86
P-T125DSE Transformer - Hammond, Universal Single Ended, 10 W, 70 mA
  • 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.
$54.68
P-T125E Transformer - Hammond, Universal Push-Pull, 15 W, 80 mA
  • Designed for general purpose or replacement use in push-pull tube output circuits. (For single ended use, see our 125 SE series - optimized for single ended tube output circuits).
  • Frequency response: 150 Hz. - 15 Khz (± 1db max. ref. 1 Khz).
  • Open style with minimum 5" long primary leads, secondary solder lugs for convenient secondary connections.
  • Tables provided with transformer listing 90 pre-calculated impedance ratios.

Dimensions (Inches)
Mounting Hole
Part No.
Audio Watts
Max. D.C.
$42.61
P-T125ESE Transformer - Hammond, Universal Single Ended, 15 W, 80 mA
  • 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.
$63.53
P-T154E Filter Choke - Hammond, Open Bracket, 20 H, 20 mA
  • Inductance: 20 H
  • D.C. Current: 20 mA
  • Resistance: 1666 ohms
  • Maximum Operating Voltage: 300 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$13.61
P-T155B Filter Choke - Hammond, Open Bracket, 6 mH, 2 A
Special Order Item
  • Inductance: 6 mH
  • D.C. Current: 2 A
  • Resistance: 0.3 ohms
  • Maximum Operating Voltage: 400 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$16.43
Note: special order items require additional lead time. See our page on special order items.
P-T155H Filter Choke - Hammond, Open Bracket, 5 H, 50 mA
  • Inductance: 5 H
  • D.C. Current: 50 mA
  • Resistance: 270 ohms
  • Maximum Operating Voltage: 400 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$15.07
P-T156 Transformer - Audio Interstage, 10 mA
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 Mounting centers: 2" Weight: 0.4 lbs.
$16.95
P-T156C Filter Choke - Hammond, Open Bracket, 150 H, 8 mA
  • Inductance: 150 H
  • D.C. Current: 8 mA
  • Resistance: 3700 ohms
  • Maximum Operating Voltage: 400 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$15.85
P-T156G Filter Choke - Hammond, Open Bracket, 9 H, 40 mA, 300 ohm
  • Inductance: 9 H
  • D.C. Current: 40 mA
  • Resistance: 300 ohms
  • Maximum Operating Voltage: 400 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$14.56
P-T156R Filter Choke - Hammond, Open Bracket, 1.5 H, 200 mA
  • Inductance: 1.5 H
  • D.C. Current: 200 mA
  • Resistance: 56 ohms
  • Maximum Operating Voltage: 400 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$15.00
P-T157G Filter Choke - Hammond, Open Bracket, 30 H, 40 mA
  • Inductance: 30 H
  • D.C. Current: 40 mA
  • Resistance: 595 ohms
  • Maximum Operating Voltage: 400 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$25.27
P-T158L Filter Choke - Hammond, Open Bracket, 15 H, 75 mA
  • Inductance: 15 H
  • D.C. Current: 75 mA
  • Resistance: 411 ohms
  • Maximum Operating Voltage: 400 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$22.07
P-T158M Filter Choke - Hammond, Open Bracket, 10 H, 100 mA
  • Inductance: 10 H
  • D.C. Current: 100 mA
  • Resistance: 195 ohms
  • Maximum Operating Voltage: 400 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$21.88
P-T158Q Filter Choke - Hammond, Open Bracket, 5 H, 150 mA
  • Inductance: 5 H
  • D.C. Current: 150 mA
  • Resistance: 105 ohms
  • Maximum Operating Voltage: 400 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$22.15
P-T159M Filter Choke - Hammond, Open Bracket, 15 H, 100 mA
  • Inductance: 15 H
  • D.C. Current: 100 mA
  • Resistance: 256 ohms
  • Maximum Operating Voltage: 500 V
  • Features
    • Economical "open bracket" - channel mount.
    • Tolerance of 15% on both inductance & resistance.
    • Inductances measured at rated D.C.
$28.08
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