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PROMO CODE: FREESHIP for free economy shipping w/orders $49+
CODE: FREESHIP for free economy shipping w/orders $49+
Variable Transformer

Variable Transformer

Input Voltage: 117VAC

Output Voltage: 0~130VAC

Available in:

  • 2 Amp (0~37VAC only) with isolation
  • 3 Amp
  • 5 Amp
  • 10 Amp with isolation
  • 20 Amp

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Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output w/ISOLATION; Part # SC-10T - AC-DC PowerShack
Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output w/ISOLATION; Part # SC-10T - AC-DC PowerShack Sold out
$199.00
$199.00 - $199.00
$199.00
$180.00
$180.00 - $180.00
$180.00

Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output w/ISOLATION

PHC Enterprise, Inc.
Out of stock

Part #: SC-10T Input Voltage: 117VAC @ 50/60Hz Output Voltage: 0~130VAC Power Rating: 1000VA With Isolation;  No grounding pin on AC power cord o...

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$199.00
$199.00 - $199.00
$199.00
$180.00
$180.00 - $180.00
$180.00
Sold out
Variable Transformer 15 Amp (1500 Watts); 0~130VAC Output w/ISOLATION; Part # SC-15T - AC-DC PowerShack Sold out
$175.00 - $175.00
$175.00
$175.00 - $175.00
$175.00

Variable Transformer 15 Amp (1500 Watts); 0~130VAC Output w/ISOLATION; Part # SC-15T

PHC Enterprise, Inc.
Out of stock

Part #: SC-15T Input Voltage: 117VAC @50/60Hz Output Voltage: 0~130VAC Power Rating: 1500VA With Isolation.  Grounding pins not isolated.  Passed ...

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$175.00 - $175.00
$175.00
$175.00 - $175.00
$175.00
Sold out
AC Auto Voltage Regulator Transformer 2500 Watts; 120VAC Output; Part # VR-2500 - AC-DC PowerShack
AC Auto Voltage Regulator Transformer 2500 Watts; 120VAC Output; Part # VR-2500 - AC-DC PowerShack Sold out
$199.00
$199.00 - $199.00
$199.00
$175.00
$175.00 - $175.00
$175.00

AC Auto Voltage Regulator Transformer 2500 Watts; 120VAC Output

PHC Enterprise, Inc.
Out of stock

Part #: VR-2500 Input Voltage: 80~130VAC 60Hz Output Voltage: 120VAC Power Rating: 2500VA (surge) Automatic Voltage regulator Provides a stable 1...

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$199.00
$199.00 - $199.00
$199.00
$175.00
$175.00 - $175.00
$175.00
Sold out
Replacement contact brush for SC-10T/SC-20M Variable transformer; Part # BRUSH-SC20 - AC-DC PowerShack Sold out
$10.00 - $10.00
$10.00
$10.00 - $10.00
$10.00

Replacement contact brush for SC-10T/SC-20M Variable transformer; Part # BRUSH-SC20

PHC Enterprise
Out of stock

Part #: BRUSH-SC20 Replacement contact brush for the SC-10T, SC10T-2, and SC-20M variable transformer.  Sold in pairs. Priced as pair/set

$10.00 - $10.00
$10.00
$10.00 - $10.00
$10.00
Sold out
Replacement contact brush for SC-15T Variable transformer; Part # BRUSH-SC15 - AC-DC PowerShack
$10.00 - $10.00
$10.00
$10.00 - $10.00
$10.00

Replacement contact brush for SC-15T Variable transformer; Part # BRUSH-SC15

PHC Enterprise
5+ in stock

Part #: BRUSH-SC15 Replacement contact brush for the SC-15T variable transformer.  Sold in pairs. Priced as pair/set

$10.00 - $10.00
$10.00
$10.00 - $10.00
$10.00

Let customers speak for us

from 183 reviews
DC Universal Power Adapter Multi Voltage Output: 3V DC-12V DC @ 2500mA; 6-plugs
so far so good

As long as it keeps working everything is fine.
Thanks, Rob

Rob Wadleigh
DC Universal Power Adapter Multi Voltage Output: 3V DC-12V DC @ 2500mA; 6-plugs
300VA Isolation Transformer, 117VAC to 117VAC
A Workbench Essential

I use this to isolate my Powerstat and Dimbulb on my workbench when testing electronic gear. 300 VA is all I need because of the Dimbulb limiter and it works as advertised.

Emmett Ward
300VA Isolation Transformer, 117VAC to 117VAC
Adjustable DC Regulated Switching Power Supply (BLACK) 3~15VDC @ 4A
A Very Nice Power Supply

This is my second purchase from AC-DC Power Shack, and I'm very pleased with both! This variable power supply is perfect for my needs. It was shipped very quickly and well packed, and at a great price. I will definitely be doing business here again!

Steve Rand
Adjustable DC Regulated Switching Power Supply (BLACK) 3~15VDC @ 4A
24VCT 24V, 12V Transformer 0-12V-24V CT @ 5A 117VAC to 24VAC or 12VAC

24VCT 24V, 12V Transformer 0-12V-24V CT @ 5A 117VAC to 24VAC or 12VAC

Stephen Gulau
24VCT 24V, 12V Transformer 0-12V-24V CT @ 5A 117VAC to 24VAC or 12VAC
AC-DC Linear Power Supply 12V DC @ 500mA; 2.1 x 5.5mm NEGATIVE center polarity
Excellent!!

the power supply is perfect, fast shipping and good price. thank you!

Peter Humphrey
AC-DC Linear Power Supply 12V DC @ 500mA; 2.1 x 5.5mm NEGATIVE center polarity
20ft 2.1mm x 5.5mm DC Plug Extension Cable, 18 AWG WHITE

20ft 2.1mm x 5.5mm DC Plug Extension Cable, 18 AWG WHITE

John Floyd
20ft 2.1mm x 5.5mm DC Plug Extension Cable, 18 AWG WHITE
AC-AC Power Supply 12V AC @ 3000mA; 2.1 x 5.5mm
Perfect experience

Everything I needed I got with this! Everything worked great and has been working without a hitch. Highly recommend

Scott Moore
AC-AC Power Supply 12V AC @ 3000mA; 2.1 x 5.5mm
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity
Top Notch Value

Bought this to replace the stock PS for my FX tube buffer pre-amp that I paid less than $30 brand new several years ago. Back then I replaced the Chinese tubes it came with for USA made GE tubes for around $28. I have a WiiM Ultra and Sony X800M 4k bdp that plays SACD, DVD-Audio(I have a collection of physical media). Both the Wiim(USB & optic) and the blue~ray player(digital coax) are linked to my Geshelli Labs J2S DAC with Sparkos op-amps. From there to a Schiit LYS(RCA switcher), 1 line going to the FX preamp then to my late model Sony ES AVR. I have EMF filtering on my surge protector, other quiet power supplies, ferrous chokes, etc, but nothing expensive. Anyway, now my system sounds better than ever. Subtle, yet beyond placebo to my ears. Perfect match for my use case. This PS is well constructed, allows my devise to achieve its potential, and it’s priced so low it doesn’t make sense not to try it. Satisfied customer, will shop AC-DC Powershack in the future. Oh btw, they shipped it immediately and it arrived in a couple days. Excellent service!

Edward Stanko
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity
1000VA Isolation Transformer, 117VAC to 117VAC
Better than expected

For the price point, this is a great deal! The order was well packaged and not damaged at all, unlike some other vendors that I have bought from. The transformer was not advertized as a toroid, but it is which is a big plus. It is properly mounted to the case with a good bolt, and isn't going anywhere. The case itself is decently thick sheet metal. Solder connections on the inside were good, wiring was tidy, and nothing needed rework. Input side had a two-pole switch and a glass fuse. Output has a switched breaker. All in all, this is a really nice and well built unit and you can't beat the price.

Brian
1000VA Isolation Transformer, 117VAC to 117VAC
Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output ISOLATION & LCD Volt Meter
Well constructed and accurate.

I purchased this as an isolation unit and got the very act as a bonus. The construction exceeds my expectations and the operation of the variac seems very accurate to the display. Works best when I go above the voltage I want and come back down.

Gregory Lynch
Variable Transformer 10 Amp (1000 Watts); 0~130VAC Output ISOLATION & LCD Volt Meter
AC-AC Power Supply 12V AC @ 3000mA; 2.1 x 5.5mm

AC-AC Power Supply 12V AC @ 3000mA; 2.1 x 5.5mm

Ignacio Peralta
AC-AC Power Supply 12V AC @ 3000mA; 2.1 x 5.5mm
Variable Transformer 20 Amp (2000 Watts); 0~130VAC Output
It's great

Has done a great job so far

Henry Jeffries
Variable Transformer 20 Amp (2000 Watts); 0~130VAC Output
AC-DC Linear Power Supply 12V DC @ 500mA; 2.5 x 5.5mm (+) center polarity

Didn't work

Wayne Brown
AC-DC Linear Power Supply 12V DC @ 500mA; 2.5 x 5.5mm (+) center polarity
AC-AC Power Supply 9V AC @ 1110mA; 2.5 x 5.5mm

AC-AC Power Supply 9V AC @ 1110mA; 2.5 x 5.5mm

Mark Nelson
AC-AC Power Supply 9V AC @ 1110mA; 2.5 x 5.5mm
Adjustable DC Regulated Switching Power Supply (BLACK) 3~15VDC @ 4A

This power supply works great for my five watt qrp transceiver. Thanks.

Joseph A VandeKieft
Adjustable DC Regulated Switching Power Supply (BLACK) 3~15VDC @ 4A