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Power Transformers

Power Transformers

Power transformers are essential components in electrical circuits, providing the necessary voltage transformation for various applications. Here are some key offerings in this category.

Heavy Duty Industrial-Grade Transformer

GB5226 GB5226

Heavy industrial-grade Transformer, designed for operation on 220V, 50-60 Hz. Because of the the 50 Hz rating, operation on 240 VAC 60 Hz will yield 20% increase in VA rating (450 VA), and 9% increase in terminal voltage. Using Transformer in Voltage Doubler circuit will yield 600 VDC @ 0.5A on 120 VAC, and 1200 VDC @ 0.4A on 240 VAC (ICAS). Ideal for sweep tube, or three 811A amplifier. Quality construction includes barrier block and cover.

Size: 4 3/4”W x 4 1/4”D x 4 3/4” H

Shipping Weight: 12.5 lbs.

Part Number: GB5226

Power / Filament Transformer

Excellent Quality.
Mfg. by MagneTek Triad

F-271U Power Transformer

• Primary 115V 50/60 Hz

• Secondary 40 VCT @ 2A

Size: 2 3/4” x 2 1/2” x 3 3/8”

Shipping Weight: 4 lbs.

Part Number: F-271U

Power / Filament Transformer

Excellent Quality.
Mfg. by MagneTek Triad

F-41X Power Transformer

• Primary 115V 60 Hz

• Secondary 25.2 VCT @ 2A

Size: 4” x 2 1/4” x 2 5/8”

Shipping Weight: 3 lbs.

Part Number: F-41X

Power / Filament Transformer

Excellent Quality.
Mfg. by MagneTek Triad

F-255X Transformer

• Primary 115V 60 Hz

• Secondary 20 VCT @ 2A

Size: 4” x 2 1/4” x 2 5/8”

Shipping Weight: 3 lbs.

Part Number: F-255X

Isolation Transformer

Mfg. by Triad-Ultrad

N73A Power Transformer

Size: 3 7/8 ” x 3 1/4” x 3 3/4 ”

Shipping Weight: 6.2 lbs.

Part Number: N-73A

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F-29U Triad Filament Transformer 115v 50/60 Hz
F-29U Triad Filament Transformer 115v 50/60 Hz

In Stock

$45.91


  • Voltage - Primary: 115V

  • Voltage - Secondary (Full Load): 10V, 11V, 12V

  • Current - Output (Max): 11A

  • Power - Max: 132VA

  • Voltage - Isolation: 3000Vrms

  • Weight: 6.5 lbs (2.9 kg)


MFR: Triad Magnetics
SKU: F-29U


See Data Sheet

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10B-2 Superior Electric Powerstat Variable Transformer 1.75 Amps (Variac) (Pull)
10B-2 Superior Electric Powerstat Variable Transformer 1.75 Amps (Variac) (Pull)
Made in the USA

In Stock

$109.91

Powerstat Variable Transformers are auto-transformers of toroidal core design, with a movable brush-tap which rotates to deliver a continuoously-adjustable output voltage from AC power lines.


Type: 10B-2
Line Voltage: 240
Frequency: 60Hz
Output Voltage: 0 - 264
Maximum Amps: 1.75
Maximum KVA: .46


Used * No longer available for export
MFR: Superior Electric
SKU: 10B-2-P

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F-41X  MagneTek/Triad Filament Transformer 25.2 VCT 2 amp
F-41X MagneTek/Triad Filament Transformer 25.2 VCT 2 amp

In Stock

$19.91


  • Maximum Power: 50.4 VA

  • Primary: 115V 60 Hz

  • Secondary: 25.2VCT @ 2.00 Amps


MFR:  Magnatek / Triad
SKU: F41X

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GB5226  JBK3-400 Power Transformer, 600vdc .8 amp on 120vac
GB5226 JBK3-400 Power Transformer, 600vdc .8 amp on 120vac

In Stock

$59.95

GB5226  JBK3-400 Power Transformer, 600vdc .8 amp on 120vac

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N-73A  Triad Isolation Transformer, 115v 1.3a, Triad (NOS)
N-73A Triad Isolation Transformer, 115v 1.3a, Triad (NOS)

In Stock

$49.95

N-73A Transformer, Isolation 115v 1.3a or 230v CT @0.65a, MFR: Triad (NOS)  No longer available for Export

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F271U Transformer, 40vct 2a, Magnatek Triad
F271U Transformer, 40vct 2a, Magnatek Triad

In Stock

$9.95

F271U Transformer, 40vct 2a, MFR: Magnatek Triad

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221A Palomar Replacement Power Transformer for Palomar 221 Amplifier.
221A Palomar Replacement Power Transformer for Palomar 221 Amplifier.

In Stock

$39.90

Palomar Replacement Power Transformer for Palomar 221 Amplifier.


See 221CHAS and 221COVER


SKU: 221A 

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4AJ5020-3  Siemens Transformer, with bridge rectifier
4AJ5020-3 Siemens Transformer, with bridge rectifier

In Stock

$69.95

 4AJ5020-3 Siemans Transformer, with Bridge Rectifier


Mfg: Siemens

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