Pyramid Universal Compact Bench Power Supply- 12 Amp Linear Regulated Home Lab Bench-top AC-to-Dc 12V Converter w/ 13.8V Dc 115V AC 270W Power Input, Screw Type Terminals, Cooling Fan- PS14KX.5

Great converter works great

It worked for 1 day on a 10 amp wash down pump!

Seems perfect. I like the 12 amp capacity and the voltage is exactly on spec at 13.8. First one came damaged. Second was good even though the box was not in great shape. Good packaging inside the box though. It’s happily powering avionics on the bench as I type.. seems a great value.

Looks solid from the outside, sturdy metal case, ok switch, ok binding posts, large finned heatsinks for the externally mounted 2N3055 power transistors. The FET inside is on a board mounted heat sink, discrete resistors are gold banded, solid appearing circuit board, externally fused line voltage, the big caps have some hot glue securement. Schematic included. The power cord is labeled KEMA-KEUR 3x0.75MM or 18 guage, solid ground to transformer mount. The warranty card says to register at pyramidcaraudio.com but that is a dead end, so here I am at Pyle because that is the link from Amazon.

The unit runs very warm under load. It does NOT have a cooling fan, just the heat sink. I use it to power a telescope and accessories drawing about 3.5 Amps. The green light is quite bright, but can be covered up with a bit of electrical tape. The power jacks are the correct spacing for standard dual banana plugs. It's new to me so no data on how well it lasts, but it seems pretty solid.

12 volts anywhere I love it

I like how this power supply provides a steady supply of power to my base station. This makes no noise and I have zero complaints about it.

After speaking with several veteran Amateur Radio operators about power supplies, I realized that there were a few general consensuses about power supplies for use with amateur radio transceivers. #1 is to buy one that is larger than you need initially. It’s likely you will have more radios in the future than you do now. A close second on recommended features is to buy a power supply that has a built-in cooling fan. With those words of wisdom in mind I began searching on Amazon, and soon found this product, Universal Compact Bench Power Supply - 12 Amp Linear Regulated Home Lab Benchtop AC-to-DC 12V Converter w/ 13.8 Volt DC 115V AC 270 Watt Power Input, Screw Type Terminals, Cooling Fan- Pyramid PS14KX.5 . It appeared that this unit fit the criteria of being larger than I needed right now, AND has a cooling fan. You will notice the words. “COOLING FAN” right there is the title of this power supply. Also, in the details section there is the paragraph that states: ”BUILT-IN COOLING FAN: The power converter features a cabinet heatsink and a built-in cooling fan to prevent the device from overheating. Constant amperage is 12A and surge is 14A w/ power output of 13.8V DC and 115V AC 60Hz 270W power input” Sure looks like this is the one I need. However, as I read more information and checked the reviews, I became concerned. There were reviews, some older and others fairly recent, that indicated this unit does NOT have a cooling fan. There were also reviews that discussed overheating, and shortened lifespan. This caused me to be more concerned that this really DID have an internal cooling fan. It was at that time that I looked at the “questions” section. Here is found this response, FROM THE MANUFACTURER, that answers this question: Are you 100% sure this unit has a cooling fan? Answer: Hi, yes it has a cooling fan. You may check other details of the unit by visiting our website pyleaudio.com. Type the model number on the search box PS14KX for more details. Thank you. By Pyle S. Manufacturer on November 26, 2019 I felt reassured that there WAS an internal cooling fan. However, as the question and answer were almost 3 years old, I felt a look at Pyle’s current website was a good idea. To my relief, this EXACT model is listed as having a built-in cooling fan. This information was current as of the day I ordered the power supply as it is the day I write this review. Feeling confident that this power supply was the one to purchase, I ordered. Amazon delivered FAST! Upon opening the sealed box, I found the power supply, well packaged, and a user’s manual, which also stated that this unit has a cooling fan. Only upon actually examining the power supply did I learn that this unit DOES NOT HAVE a build-in, (or any other kind of) cooling fan. Let me repeat… THIS POWER SUPPLY DOES NOT HAVE ANY KIND OF COOLING FAN. At first, I was disappointed that there was SO MUCH information indicating this unit has a cooling fan. I really wanted this to be what it said it was. The price was fair, and the Pyramid brand was mentioned by several folks I spoke with as a reliable brand. Disappointment soon turned to feelings of anger. Why was there so much information that was wrong. NOT just in one line of the advertising, but in a direct question, and answer FROM THE MANUFACTURER with the absolutely WRONG answer. Not wishing to take a chance and disregard recommendations from folks who have been in the amateur radio hobby for quite a while, it seemed to me that returning the item was my only course of action. In this AMAZON was again TERRIFIC. The cost of the unit, and the cost of the extended warranty were quickly refunded to my credit card. It’s really frustrating that all the companies that sell products on Amazon aren’t a customer oriented as is Amazon. I do hope the manufacturer becomes aware of this misinformation, and corrects their advertising and owner’s manual; OR… maybe they will begin building this unit WITH a build-in cooling fan. If they do, I hope to find one. With the exception of the needed cooing fan, this appeared to be a well-build power supply.

This is a heavy unit and it works just fine.

Es un buen producto cumplió con las expectativas trabaja bien

Great product. Easy to use and very user friendly. It is perfect for the new speaker I bought. I recommend this.

En mi opinión requiere mucha mayor energía electrica para que funcionen los aparatos electrodomesticos de 12V para los que fue adquirido, no lo recomiendo

Product is good for our purpose. No issues.