Top Products – Low Prices Electrical Universal Compact Bench Power Supply- 50 Amp Regulated Home Lab Benchtop AC-to-DC Converter 13.8 Volt/9-15Volt, Cooling Fan, Screw Type Terminals – Jesverty SPS-50II

Universal Compact Bench Power Supply- 50 Amp Regulated Home Lab Benchtop AC-to-DC Converter 13.8 Volt/9-15Volt, Cooling Fan, Screw Type Terminals – Jesverty SPS-50II

Price: ~~$149.99~~ - $127.20

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Best 50 Amp Power Supply for the Money

Reviewed in the United States on November 18, 2023

Size: 50II(9-15V 50A)Verified Purchase

I have had this power supply now for several months and it works as advertised. I like that it has two LED lit dials, one for amps being drawn and one for voltage. I have mine set for 13.8 volts DC as recommended by most amateur radio gear. When transmitting with my HF or VHF transceiver at 100 watts, the voltage does not drop any nor does the needle even flicker. The amp meter does show the proper amount of amperage being used. The fan does NOT run constantly like a lot of the switching power supplies do. It is a very quiet power supply. The fan will come on if I am running high wattage on 100% duty cycle modes of transmission. The fan runs only until the unit cools back down and the fan is not very loud. The unit has a voltage adjust knob on the front along with an offset knob for moving any “birdies” that the power supply might generate, but I have not found that to be a problem. There are also two sets of Anderson Power Poles on the front along with a cigarette lighter type outlet. The main power is supplied through two heavy duty connectors on the back of the unit. I do highly recommend this power supply for a radio amateur and the price is the best around for a 50 amp supply.

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Geekus

Good 50A supply for 12VDC (nominal) devices…with only one bad “nit” to mention.

Reviewed in the United States on August 6, 2023

Size: 50II(9-15V 50A)Verified Purchase

Review update, 8/23/23:

I spoke with a power supply engineer that I’ve known for years. He advised that a properly designed DC switching supply should not “bounce on the way down”, but its DC output should degrade smoothly to zero Volts w/o a “ringing bounce”, and that this kind of bouncing is not good for anything in the “on position” that may still be connected to it. With regret, I returned the Jesverty 50A supply for a refund. Amazon was good to its word and processed the refund because I did the return in the initial 30 day ownership period. So, while the supply works great when powering up and staying powered (even when sourcing very high current demands), this shutdown anomaly is enough reason to return it. Sorry, This removes one more star from my rating.

Original review:

I had a Motorola TPN-1154A linear regulated supply as my main ham station source of DC Voltage. Moto designed this supply to regulate at 14.5VDC with up to a 15A continuous draw (20A on surges) with minimal change in its regulated, nominal Voltage output. I had used this supply for over two decades without incident.

Since I monitor its Voltage with a small DMM module, I recently noticed the Moto supply’s output had climbed to 14.9VDC with no load. Most 12VDC devices do not like being fed with DC Voltages much above 15 Volts, so I felt uncomfortable with this recent development and didn’t want my nominal Voltage to climb much higher.

After much searching at the ham stores and on Amazon, I decided to purchase the Jesverty SPS-5011 to be my new ham station supply. I have owned a number of linear supplies over the years I’ve been a ham as well as switchers from Icom and MFJ and even a generic LED light string 12V/30A switcher I bought to power an IC-706 radio. Some switchers are better than others. Most regulate their output Voltage quite well. Some, like my generic unit can be a bit noisy with switching regulator noise. The Jesverty SPS-5011 is certainly one of the quieter switcher supplies I’ve owned.

With its dual metering, switchable fixed 13.8VDC versus 9-15VDC adjustable modes, noise movement control (moves the AC chopper frequency to move “birdies” around), and great current sourcing capability (along with the expected good Voltage regulation, I am very happy with its features and performance.

Since I like to power down my ham station by switching off an AC outlet strip that the Jesverty is plugged into, I have noticed one thing I do NOT like. This single “nit” is that unlike the predictable drop of a linear supply’s decaying DC output, and not like a similar drop in output when AC is removed from my Icom, MFJ, and even the 12V/30A generic supply…the Jesverty’s DC output “rings” as it decays.

By this I mean that the DC output does not drop as a somewhat steady decay when AC is removed (even by switching the Jesverty “off” with its front panel power switch) but it actually “bounces on the way down to zero Volts output”. One can see this with the Jesverty’s panel lamps turning off and on several times before finally going out completely. I can also hear some popping in my amplified speakers as this Voltage bounces during its ultimate decay to being totally “off”.

I’m not sure whether or not this is harmful to any of my equipment, so I do try to always FIRST turn off my radios before “throwing the big switch” on the AC strip. Since some of the radios do not have a hard, cold “off” mode (some parts of their circuitry is always drawing a bit of current when DC is present on their power cables, and they simply do a soft start when their power switches are depressed) I do have some minor concerns about this bouncy “on to off” transition behavior.

This is not so much a concern for me, however, that I feel I need to return this power supply. The other capabilities this Jesverty 50A supply has, for me, far outweigh this minor concern.

BTW, I diagnosed and repaired the Moto supply’s creeping regulated DC Voltage issue and even changed some of its “select in manufacturing” resistor values in it to recenter its own DC output to exactly 13.8VDC…but I’m keeping the Jesverty SPS-5011 anyway. I’m that happy with it and feel it’s that good of a purchase (unless it dies due to infant mortality).

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Santa Claus

Car audio on 110v?

Reviewed in the United States on November 9, 2023

Size: 1330(13.8V 30A)Verified Purchase

Powering a subwoofer and amp for a vehicle in my house. It gets that woofer woofin. I chose this unit instead of a much cheaper power supply because the fan runs when it needs to and not all the time.

Testing with a kill a watt meter it uses 35 watts at idle, and about 50 watts with loud heavy bass. I feel like I’m missing something but this ramshackld setup works beautifully for home theater.

The amp is fused for 60 amps so this power supply isn’t robust enough for full capacity. It’s more than plenty though.

The only thing that’s missing is being able to fully unscrew the wire connectors to be able to use a ring terminal. That would really class it up. The more expensive models have that ability but not the poor mans model.

Nice but odd Shutdown

Reviewed in the United States on November 21, 2023

Size: 50II(9-15V 50A)Verified Purchase

Running this on a Yaesu FT847, works well, plenty of reserve power at 50 amps. No noise, and otherwise works fine.

One issue, also mentioned by others is when you shut it down you get the odd voltage pulsing as it turns off. I try to shut the radio off first, but I don’t always remember. Does not seem to be a problem, but would be nice if it didn’t do it just for piece of mind.

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spatrick

great

Reviewed in the United States on November 15, 2023

Size: 1333(13.8V 30A)Verified Purchase

Great and small, it is currently running my 991A and my 8900 at the same time with no issues

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kevin blackwelder

Awesome

Reviewed in the United States on November 11, 2023

Size: 50II(9-15V 50A)Verified Purchase

Awesome power supply for HAM radio. No buzzing in audio, solid 14.9-15.0 volts with variable all the way up.

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g.wray

Works great!

Reviewed in the United States on November 7, 2023

Size: 50II(9-15V 50A)Verified Purchase

Runs very quiet and holds the voltage steady. It”s been on all day and barely warm.

Power supply.

Reviewed in the United States on September 28, 2023

Size: 50II(9-15V 50A)Verified Purchase

Runs my HF radio and my dual band 2 meter/70cm radios at the same time. Would buy again

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トッキ−

使い勝手は良い

Reviewed in Japan on November 14, 2023

Verified Purchase

移動運用で使ってみました、液晶で電圧、電流値がリアルでわかるのは以外に便利とおもいました

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charly-delta

livraison toujours dans les delais et materiel bien protege

Reviewed in France on November 24, 2023

Size: 1330(13.8V 30A)Verified Purchase

cette alimentation est dediee a l’alimentation d’un poste emetteur recepteur radioamateur

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コリン星人

トランスタイプとは雲泥の差(こちらが良い）です。

Reviewed in Japan on October 27, 2023

Verified Purchase

このサイズと軽さで３０Aとは驚きです。皆さんのレビューにあるような上蓋（後方）のネジ止めで浮きはありませんでしたし、全面パネルも剥がれていませんでした。また、電源ケーブルも２極にアース用の線が付いているので変換アダプターも必要ありません。３０年振りにアマチュア無線の局免許を申請中なので、負荷を掛けた試験はしていませんが、納入直後にテスターで調べるとデジタル表示どおりの電圧になっていました。騒音は負荷が無いのでファンは回らずとても静かです。

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Fabio

arrivato qualche minuto fa consegna velocissima grazie

Reviewed in Italy on November 9, 2023

Size: 1330(13.8V 30A)Verified Purchase

consegnato puntualmente ottimo

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Ceebee

Great PSU for CB radio.

Reviewed in the Netherlands on November 17, 2023

Size: 1330(13.8V 30A)Verified Purchase

This is an excellent compact univeral switching regulated 30 amp power supply unit for cb or ham radio equipment. İ highly recommend it.

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Important information

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【Screw-type main terminals】The main output terminals ensure easy compatibility with all DC-powered devices and are large enough to provide an efficient power transfer to your equipment.
【Auxiliary Output Terminals】2 pairs of auxiliary snap-in terminals and a cigarette lighter socket on the front panel for added convenience.
【Analog V/A Meters】Highly visible V/A twin meters for real-time monitoring of the status.
【Forced Air Cooling Fan & Protection】A built-in cooling fan that prevents overheating and keeps the unit running continuously under heavy loads. Advanced short circuit protection and automatic current limiting ensure the safety of operators and any connected electrical equipment.
Price: ~~$149.99~~ - $127.20

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Universal Compact Bench Power Supply- 50 Amp Regulated Home Lab Benchtop AC-to-DC Converter 13.8 Volt/9-15Volt, Cooling Fan, Screw Type Terminals – Jesverty SPS-50II

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