Skip to content
PROMO CODE: FREESHIP for free economy shipping w/orders $49+
CODE: FREESHIP for free economy shipping w/orders $49+
Discontinued AC-1888C-2 18V AC 888mA wall transformer power supply with 2.1mm x 5.5mm plug by PHC Enterprise, Inc.

18V AC-AC Power Supply 888mA Wall Transformer | AC-1888C-2 (Discontinued)

by PHC Enterprise, Inc.
Sold out
$17.00 - $17.00
$17.00
$17.00 - $17.00
$17.00
DISCONTINUED PRODUCT NOTICE:
Part number AC-1888C-2 (18VAC 888mA) has been retired by the manufacturer.

Direct Replacement Available:
We recommend our fully compatible upgraded transformer: 18V AC 1000mA (1A) Power Adapter | 2.1mm x 5.5mm Plug. The higher amperage rating (1000mA vs 888mA) provides cooler operation and extended durability while remaining 100% plug-and-play compatible.

The AC-1888C-2 is a legacy non-regulated linear AC-AC wall transformer engineered to deliver 18VAC output at 888mA. Featuring a standard 2.1mm x 5.5mm straight barrel plug, it was widely used in HVAC controllers, audio pre-amps, security keypads, and low-voltage control systems.

Legacy Product Specifications

  • Model / MPN: AC-1888C-2
  • Input Voltage: 120V AC, 60Hz
  • Output Voltage: 18V AC (AC18V)
  • Output Current: 888mA (16.00VA)
  • Connector Dimensions: 2.1mm ID x 5.5mm OD Straight Barrel Plug
  • Design Type: Wall-Mount Linear Transformer
  • Polarity: Alternating Current (AC Output)

Cross-Reference & Compatibility Note

If your device originally specified an 18VAC 800mA, 850mA, or 888mA power supply, the upgraded 18V AC 1000mA replacement transformer safely replaces this unit without electrical risk.

Let customers speak for us

from 330 reviews
16.5V 40VA AC-AC Transformer for Security Systems & Alarms | AC-1624SA

It works fine

Tom
25 ft. 18/3 AC Power Extension Cord
25 ft. 18/3 AC Power Extension Cord

exactly as described! good product, good shipping.

glenc
12V AC-AC Power Adapter, 1000mA (1A) Wall Transformer, 2.1mm x 5.5mm Plug | Model AC-121A

12V AC-AC Power Adapter, 1000mA (1A) Wall Transformer, 2.1mm x 5.5mm Plug | Model AC-121A

Samuel Mangum
DC Barrel Plug Adapter to 6.3 x 3.0mm plug from 2.1 x 5.5mm

DC Barrel Plug Adapter to 6.3 x 3.0mm plug from 2.1 x 5.5mm

Robert Chase
Variable Isolated Transformer 10A (1000W) 0–130VAC with LCD Voltmeter | SC-10T-2
What an INCREDIBLE deal, what service!!! I'm be buying more!

I bought the Variac/isolation transformer combo. FOR STARTERS: NOBODY ELSE MAKES THIS COMBO with a genuine isolation transformer. And that fact that it's $200 out the door is insanity. My only advice with the unit would be to double check the voltage display against a multimeter; I find my display to be about 5V lower than the actual output and adjusted accordingly.

This item was packaged more securely than a nuclear warhead. Seriously, the packing job is a masterclass in transportation and logistical safeguards.

In short--I rarely leave reviews. I felt I HAD to for this product. If you're not sure because it's a newer item/company, don't worry. They are LEGIT and they are INCREDIBLE.
One more side note--customer service response is insanely fast also. I emailed a question on a SUNDAY EVENING and got an answer.

GREAT, domestically-owned small business I will support again.

Dan-Owner, HiFi Hopes LLC

Dan-Owner, Hifi Hopes Vintage Audio Restoration
AC-AC Power Supply 16V AC @ 1250mA; 2.1 x 5.5mm
Great service and communication

Got my power supply on time and it’s a great deal!

Roma Solomatov
12V 500mA AC-DC Linear Power Supply (2.1mm x 5.5mm) | PV-1250A
Replacement for Morpheus Droptune Pedal

Needed a replacement for a few guitar pedals. This is a perfect replacement for many pedals. Just verify center polarity and amp requirements.

Brandon Pockat
500VA Isolation Transformer 117VAC to 117VAC | ISO-500
Works. Looks good too.

More compact with the toroid transformer.

James Bradshaw
Professional 1000VA Isolation Transformer | 117VAC to 117VAC - ISO-1000
Professional 1000VA Isolation Transformer | 117VAC to 117VAC - ISO-1000

Work as described.

Henry Huynh
AC adapter to my harmonizing pedal

I plugged my new AC adapter to my harmonizing pedal and it worked perfectly. You got one happy customer! Thank you very much.

Sam Striegel
500VA Isolation Transformer 117VAC to 117VAC | ISO-500
Excellent Packing

Unit works exactly as it should. This unit is heavy, it was double boxed along with bubble wrap and fitted inserts. Outstanding!

Brad Gensmer
DC Barrel Plug Adapter, Female 2.1mm x 5.5mm to Male 0.7mm x 2.5mm, 18 AWG | RC-X0725
DC Barrel Plug Adapter to 0.7 x 2.5mm plug from 2.1 x 5.5mm

A fantastic well made product. I am using this plug to power a early 2000 QRP transceiver and it works perfectly

Douglas Rehder
12V 500mA Linear Power Supply 3.5mm Plug | PV-1250C
Great Service

They had a transformer that matched my needs.
Great price and fast response.

Mike Nichols
6ft 2.5mm x 5.5mm DC Power Extension Cable, 20 AWG

We are totally satisfied with this product and the delivery time.

J.M.P.
6V AC-DC Linear Power Supply, 1400mA (1.4A), Negative Center | PV-61A
6V AC-DC Linear Power Supply

Works like a charm for my Grundig 350DL as I lost the original years ago. Thank you AC-DC PowerShack.

RALPH HALL