Skip to content
PROMO CODE: FREESHIP for free economy shipping w/orders $49+
CODE: FREESHIP for free economy shipping w/orders $49+
AC-AC Power Supply 12VAC @ 1000mA; 2.1 x 5.5mm; Part # AC-121A - AC-DC PowerShack
AC-DC Switching Regulated Power Supply 12V DC @ 12500mA; Tinned end wires no DC plug - AC-DC PowerShack
AC-AC Power Supply 12VAC @ 1000mA; 2.1 x 5.5mm; Part # AC-121A - AC-DC PowerShack
AC-AC Power Supply 12VAC @ 1000mA; 2.1 x 5.5mm; Part # AC-121A - AC-DC PowerShack
AC-DC Switching Regulated Power Supply 12V DC @ 12500mA; Tinned end wires no DC plug - AC-DC PowerShack
AC-AC Power Supply 12VAC @ 1000mA; 2.1 x 5.5mm; Part # AC-121A - AC-DC PowerShack

AC-AC Power Supply 12V AC @ 1000mA; 2.1 x 5.5mm

by PHC Enterprise, Inc.

$13.00 - $13.00
$13.00
$13.00 - $13.00
$13.00

Part #: AC-121A

Input: 120VAC

Output: 12VAC @ 1000mA

Plug: 2.1 x 5.5mm

Wall-mount

Let customers speak for us

from 250 reviews

Sometimes,

one can tell the quality of the equipment by the packaging. The SC-102T could not have been packed any better; two boxes separated with bubble wrap and then bubbled wrapped into the final shipping box. I have only checked the operating voltages and dial settings. Considering that I have an input here at about 122 VAC, .the dial should be considered accurate. The unit appears that it was calibrated at 117 VAC. All in all, a very nice looking isolation transformer. I would highly recommend!

Anonymous
AC-DC PowerShack
500VA Isolation Transformer, 117VAC to 117VAC

Works great

chad
500VA Isolation Transformer, 117VAC to 117VAC
12ft 1.35mm x 3.5mm DC Power Extension Cable, 20 AWG
Great service!!

The entire staff was very helpful in finding a cable that would fit my needs. Kudos to all!

David Lax
12ft 1.35mm x 3.5mm DC Power Extension Cable, 20 AWG
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity
AC-DC Linear Power Supply 12V DC @ 1200mA

Watched a power supply comparison on Old HiFi Guy's youtube channel.
I purchased 2 one for a Fosi Audio GR40 and the other for a Fiio K11 R2R.
The Fiio's switching power supply is 12 volt 2 amp so I did not try it with the Fiio.
Tried it with the Fosi GR40 on my modest near field system that is powered by a Fosi ZA3 amp with Sparko's opamp's, Sony SSCS 5 for mains and Polk Audio RM705 subwoofer.
The difference in sound stage, instrument placement, vocals and especially bass response was shocking. This PSP linear power supply made music like Stanley Clarkes School Day's, to stuff like Dave Brubeck's Time Out to the Who's Live at Leeds My Generation bass solo by John actually sound like a bass instrument instead of the expected performance of an inexpensive subwoofer.
Moving from a Douk Audio P1 tube preamp to the Fossi GR40 preamp/dac made a immediately noticeable improvement. This linear power supply gave a comparably obvious improvement to the overall sound.
Easily the best bang for the buck improvement to the overall sound I have ever purchased.

Anonymous
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity
Great Power Supply

Old Guy Hifi sent me after I researched about linear power supplies on YouTube. I have it powering my Dac. I reccomend highly 👍

Tom S.
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity
Adjustable DC Regulated Switching Power Supply (YELLOW) 3~15VDC @ 4A
Good value

Nice compact power supply

Darryl Brisbay
Adjustable DC Regulated Switching Power Supply (YELLOW) 3~15VDC @ 4A
DC Barrel Plug Adapter to 9V Battery Clips from 2.1 x 5.5mm
Great part

Great customer service and support I would buy again for I’m them

Debra Skelton
DC Barrel Plug Adapter to 9V Battery Clips from 2.1 x 5.5mm
Variable Transformer 5 Amp (500 Watts); 0~130VAC Output
Variable Transformer 5 Amp (500 Watts); 0~130VAC Output

This variac performs great for dialing down my wall voltage for a vintage guitar amplifier. I added a plug in meter with digital display and makes a perfect set up. I would buy this varian again if needed. Company also got it shipped out immediately. Great experience dealing with AC-DC Powershack!

Michael Straub
Variable Transformer 5 Amp (500 Watts); 0~130VAC Output
Adjustable DC Regulated Switching Power Supply (BLACK) 3~15VDC @ 4A
owner

This is a great machine for my bench work would highly recommend

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

Perfect for my needs

Ed Silvas
Adjustable DC Regulated Switching Power Supply (BLACK) 3~15VDC @ 4A
500VA Isolation Transformer, 117VAC to 117VAC
excellent quality

This is the perfect addition to my shop for doing vintage radio troubleshooting. The isolation transformer works fine and appears to be well made.

Patrick Madigan
500VA Isolation Transformer, 117VAC to 117VAC
Variable Transformer 5 Amp (500 Watts); 0~130VAC Output

Variable Transformer 5 Amp (500 Watts); 0~130VAC Output

Mark Hsus
Variable Transformer 5 Amp (500 Watts); 0~130VAC Output
300VA Isolation Transformer, 117VAC to 117VAC
Works great

Now a staple component to my electronic desk.

jon germano
300VA Isolation Transformer, 117VAC to 117VAC
500VA Isolation Transformer, 117VAC to 117VAC
Very nice

This is a real isolation transformer. Keeps me safe when doing my repairs.

Mike
500VA Isolation Transformer, 117VAC to 117VAC
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity
Woeks great

5 stars. Works as intended.

Darrell Woods
AC-DC Linear Power Supply 12V DC @ 1200mA; 2.5 x 5.5mm (+) center polarity