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Low Cost Power Supplies

Save money with Circuit Specialists' custom-built economy benchtop power supplies which feature easy-to-read backlit LCD displays. These power supplies are expertly built and are available in a variety of output voltages. These powerful units are a remarkable value, considering their quality and features, especially our selection of programmable power supplies which are ideal for scientific research, educational labs, and applications requiring a sophisticated DC power source.

  • Original price $149.99 - Original price $149.99
    Original price
    $149.99
    $149.99 - $149.99
    Current price $149.99

    20A Variable Autotransformer - 0-130VAC - Dual Digital Display - TDGC3-2D Variac

    Circuit Specialists
    279 in stock

    Now introducing the TDGC3-2D 20 Amp Variac, the newest generation of our bestselling line of variable autotransformers! This upgraded model, which ...

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    Original price $149.99 - Original price $149.99
    Original price
    $149.99
    $149.99 - $149.99
    Current price $149.99
  • Original price $159.99
    Original price $159.99 - Original price $159.99
    Original price $159.99
    $115.99 - $149.99
    $115.99 - $149.99
    Current price $115.99

    Variable AC Transformer with Digital Display & 20 Amp Max Output

    Circuit Specialists
    Only 2 left!

    ***This item has been discontinued and replaced by the upgraded model TDGC3-2D.*** Variac Transformer TDGC2-2D with 20 Amp Max Output and LCD Digit...

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    Original price $159.99
    Original price $159.99 - Original price $159.99
    Original price $159.99
    $115.99 - $149.99
    $115.99 - $149.99
    Current price $115.99
    Save up to 28% Save %
  • Original price $214.99 - Original price $214.99
    Original price
    $214.99
    $214.99 - $214.99
    Current price $214.99

    30A Variable Autotransformer - 0-130VAC - Dual Digital Display - TDGC3-3D Variac

    Circuit Specialists
    10 in stock

    The TDGC3-3D variable autotransformer (variac) is part of the newest generation of Circuit Specialists’ bestselling line of variacs, replacing the ...

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    Original price $214.99 - Original price $214.99
    Original price
    $214.99
    $214.99 - $214.99
    Current price $214.99
  • Original price $99.99
    Original price $99.99 - Original price $99.99
    Original price $99.99
    Current price $82.12
    $82.12 - $82.12
    Current price $82.12

    30 Volt DC 5 Amp Switch Mode Bench Power Supply

    Circuit Specialists
    79 in stock

    CSI3005SM 30 Volt, 5 Amp Switch Mode DC Power Supply The CSI3005SM is a fully adjustable benchtop power supply with coarse and fine adjustments. Th...

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    Original price $99.99
    Original price $99.99 - Original price $99.99
    Original price $99.99
    Current price $82.12
    $82.12 - $82.12
    Current price $82.12
    Save 18% Save %
  • Original price $74.99 - Original price $74.99
    Original price
    $74.99
    $74.99 - $74.99
    Current price $74.99

    0.5A Variable Autotransformer - 0-130VAC - Dual Digital Display - TDGC3-0.5D Variac

    Circuit Specialists
    47 in stock

    The TDGC3-0.5D variable autotransformer (variac) is the latest and greatest of Circuit Specialists’ bestselling line of variacs! This variac, which...

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    Original price $74.99 - Original price $74.99
    Original price
    $74.99
    $74.99 - $74.99
    Current price $74.99
  • Original price $118.32 - Original price $118.32
    Original price
    $118.32
    $118.32 - $118.32
    Current price $118.32

    32 Volt DC 5.0 Amp Programmable Linear Power Supply

    Circuit Specialists
    53 in stock

    Circuit Specialists 32 Volt, 5.0 Amp DC Power Supply Originally the Hantek PPS2116A, Circuit Specialists now sells this great value DC power supply...

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    Original price $118.32 - Original price $118.32
    Original price
    $118.32
    $118.32 - $118.32
    Current price $118.32
  • Original price $40.08 - Original price $40.08
    Original price
    $40.08
    $40.08 - $40.08
    Current price $40.08

    18 Volt DC 2.0 Amp Linear Bench Power Supply

    Circuit Specialists
    94 in stock

    Circuit Specialists 18 Volt, 2.0 Amp DC Power Supply The CSI1802X is a fully regulated benchtop linear power supply with adjustable current limitin...

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    Original price $40.08 - Original price $40.08
    Original price
    $40.08
    $40.08 - $40.08
    Current price $40.08
  • Original price $135.90 - Original price $135.90
    Original price
    $135.90
    $135.90 - $135.90
    Current price $135.90

    30V 10A Variable Switching DC Power Supply

    Circuit Specialists
    71 in stock

    Low Cost 0-30V, 10Amp Bench Power Supply Adjustable Benchtop Power up to 10 Amps. This sleek switch mode benchtop power supply features a digital L...

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    Original price $135.90 - Original price $135.90
    Original price
    $135.90
    $135.90 - $135.90
    Current price $135.90
  • Original price $79.99
    Original price $79.99 - Original price $79.99
    Original price $79.99
    Current price $65.83
    $65.83 - $65.83
    Current price $65.83

    30 Volt DC 3.0 Amp Switch Mode Power Supply

    Circuit Specialists
    25 in stock

    Circuit Specialists 30 Volt, 3.0 Amp DC Power Supply The CSI3003SM is a fully regulated switch mode power supply with adjustable voltage output. T...

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    Original price $79.99
    Original price $79.99 - Original price $79.99
    Original price $79.99
    Current price $65.83
    $65.83 - $65.83
    Current price $65.83
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  • Original price $74.02 - Original price $74.02
    Original price
    $74.02
    $74.02 - $74.02
    Current price $74.02

    5 Amp Variable Output Autotransformer with Digital Display

    Circuit Specialists
    Out of stock

    5 Amp Variac Variable Output Autotransformer with Digital Display We're sorry, this item has been discontinued. It has been replaced by our Gen3....

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    Original price $74.02 - Original price $74.02
    Original price
    $74.02
    $74.02 - $74.02
    Current price $74.02
    Sold out
  • Original price $189.99
    Original price $189.99 - Original price $189.99
    Original price $189.99
    $124.99 - $168.68
    $124.99 - $168.68
    Current price $124.99

    120 Volt DC 1.0 Amp Linear Bench Power Supply

    Circuit Specialists
    Currently on Backorder

    The CSI12001X is a high stability LCD digital read-out bench power supply featuring constant voltage and current outputs. Short circuit and current...

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    Original price $189.99
    Original price $189.99 - Original price $189.99
    Original price $189.99
    $124.99 - $168.68
    $124.99 - $168.68
    Current price $124.99
    Save up to 34% Save %
  • Original price $269.99
    Original price $269.99 - Original price $269.99
    Original price $269.99
    Current price $242.77
    $242.77 - $242.77
    Current price $242.77

    30 Volt DC 5.0 Amp Triple Output Variable Power Supply

    Circuit Specialists
    24 in stock

    Circuit Specialists 30 Volt, 5.0 Amp DC Power Supply The CSI305 is a fully regulated, triple output benchtop power supply with series and parallel ...

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    Original price $269.99
    Original price $269.99 - Original price $269.99
    Original price $269.99
    Current price $242.77
    $242.77 - $242.77
    Current price $242.77
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  • Original price $98.44 - Original price $98.44
    Original price
    $98.44
    $98.44 - $98.44
    Current price $98.44

    50 Volt DC 3 Amp Linear Bench Power Supply

    Circuit Specialists
    89 in stock

    Circuit Specialists 50 Volt, 3 Amp DC Power Supply The CSI5003XE is a fully regulated benchtop linear power supply with adjustable current limiting...

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    Original price $98.44 - Original price $98.44
    Original price
    $98.44
    $98.44 - $98.44
    Current price $98.44
  • Original price $135.23 - Original price $135.23
    Original price
    $135.23
    $135.23 - $135.23
    Current price $135.23

    15 Volt DC 25.0 Amp Switching Bench Power Supply

    Circuit Specialists
    58 in stock

    Circuit Specialists 3-15 Volt, 23.0 Amp DC Power Supply The CSI25SW-D is a fully regulated benchtop switching power supply with high current and ad...

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    Original price $135.23 - Original price $135.23
    Original price
    $135.23
    $135.23 - $135.23
    Current price $135.23
  • Original price $399.99
    Original price $399.99 - Original price $399.99
    Original price $399.99
    Current price $355.49
    $355.49 - $355.49
    Current price $355.49

    60 Volt DC 10 Amp Linear Bench Power Supply

    Circuit Specialists
    9 in stock

    Circuit Specialists 60 Volt, 10 Amp DC Power Supply The CSI6010X is a fully regulated benchtop linear power supply with adjustable current limiting...

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    Original price $399.99
    Original price $399.99 - Original price $399.99
    Original price $399.99
    Current price $355.49
    $355.49 - $355.49
    Current price $355.49
    Save 11% Save %
  • Original price $119.99 - Original price $119.99
    Original price
    $119.99
    $119.99 - $119.99
    Current price $119.99

    *Refurbished* Variable Transformer TDGC2-3D with Digital Display & 30 Amp Max Output

    Circuit Specialists
    Out of stock

    Variac Transformer TDGC2-3D with 30 Amp Max Output and LCD Digital DisplayVariac Transformer TDGC2-3D is an affordable, versatile way to control AC...

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    Original price $119.99 - Original price $119.99
    Original price
    $119.99
    $119.99 - $119.99
    Current price $119.99
    Sold out
  • Original price $149.99 - Original price $149.99
    Original price
    $149.99
    $149.99 - $149.99
    Current price $149.99

    *Refurbished* 30 Volt DC 5.0 Amp Triple Output Variable Power Supply

    Circuit Specialists
    Out of stock

    Circuit Specialists 30 Volt, 5.0 Amp DC Power Supply The CSI305 is a fully regulated, triple output benchtop power supply with series and parallel ...

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    Original price $149.99 - Original price $149.99
    Original price
    $149.99
    $149.99 - $149.99
    Current price $149.99
    Sold out
  • Original price $119.99 - Original price $194.63
    Original price
    $119.99 - $194.63
    $119.99 - $194.63
    Current price $119.99

    Variable Transformer TDGC2-3D with Digital Display & 30 Amp Max Output

    Circuit Specialists
    Out of stock

    ***This item has been discontinued and replaced by the upgraded model TDGC3-3D.*** Variac Transformer TDGC2-3D with 30 Amp Max Output and LCD Digit...

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    Original price $119.99 - Original price $194.63
    Original price
    $119.99 - $194.63
    $119.99 - $194.63
    Current price $119.99
    Sold out
  • Original price $352.09 - Original price $352.09
    Original price
    $352.09
    $352.09 - $352.09
    Current price $352.09

    60 Volt DC 15.0 Amp High Output Switch Mode Power Supply

    Circuit Specialists
    25 in stock

    0-60V/0-15A Switch Mode Bench Power Supply This is a powerful switch mode power supply with many features. High efficiency, compact size, light wei...

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    Original price $352.09 - Original price $352.09
    Original price
    $352.09
    $352.09 - $352.09
    Current price $352.09
  • Original price $184.17 - Original price $184.17
    Original price
    $184.17
    $184.17 - $184.17
    Current price $184.17

    30 Volt DC 20.0 Amp Switch Mode Power Supply

    Circuit Specialists
    62 in stock

    Circuit Specialists 30 Volt, 20 Amp DC Power Supply The CSI3020SW is a compact, efficient switching benchtop power supply with adjustable voltage a...

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    Original price $184.17 - Original price $184.17
    Original price
    $184.17
    $184.17 - $184.17
    Current price $184.17
  • Original price $99.99
    Original price $99.99 - Original price $99.99
    Original price $99.99
    Current price $88.67
    $88.67 - $88.67
    Current price $88.67

    13.8 Volt DC 23.0 Amp Switch Mode Fixed Output Power Supply

    Circuit Specialists
    64 in stock

    Circuit Specialists 13.8 Volt, 23.0 Amp DC Power Supply The CSI23SW1 is a fully regulated, fixed output switch mode power supply with high current ...

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    Original price $99.99
    Original price $99.99 - Original price $99.99
    Original price $99.99
    Current price $88.67
    $88.67 - $88.67
    Current price $88.67
    Save 11% Save %
  • Original price $197.76 - Original price $197.76
    Original price
    $197.76
    $197.76 - $197.76
    Current price $197.76

    15 Volt DC 40.0 Amp Switch Mode Power Supply

    Circuit Specialists
    61 in stock

    Circuit Specialists 15 Volt, 40.0 Amp DC Power Supply The CSI1540SW is a fully regulated benchtop switch mode power supply with adjustable voltage ...

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    Original price $197.76 - Original price $197.76
    Original price
    $197.76
    $197.76 - $197.76
    Current price $197.76
  • Original price $493.27 - Original price $493.27
    Original price
    $493.27
    $493.27 - $493.27
    Current price $493.27

    CSI10015 0-100V/0-15A Switch Mode Bench Supply

    Circuit Specialists
    36 in stock

    CSI10015 0-100V/0-15A Switch Mode Bench SupplyHigh efficiency switching power supply provides adjustable DC voltage output from 0 to 100 DC VOLTS a...

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    Original price $493.27 - Original price $493.27
    Original price
    $493.27
    $493.27 - $493.27
    Current price $493.27
  • Original price $311.53 - Original price $311.53
    Original price
    $311.53
    $311.53 - $311.53
    Current price $311.53

    0-40 Volt / 0-10 Amp DC Bench Power Supply w Adjustable Current Limiting

    Circuit Specialists
    6 in stock

    Adjustable 0-40 Volt / 0-10 Amp DC Power Supply with Adjustable Current Limiting The CSI4010X is a regulated linear bench power supply with adjusta...

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    Original price $311.53 - Original price $311.53
    Original price
    $311.53
    $311.53 - $311.53
    Current price $311.53

Save money with Circuit Specialists' custom-built economy benchtop power supplies which feature easy-to-read backlit LCD displays. These power supplies are expertly built and are available in a variety of output voltages. These powerful units are a remarkable value, considering their quality and features, especially our selection of programmable power supplies which are ideal for scientific research, educational labs, and applications requiring a sophisticated DC power source.

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