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Reviews Categories | Power Supplies | QJE PS30SWIII Help

Reviews Summary for QJE PS30SWIII
QJE PS30SWIII Reviews: 3 Average rating: 4.7/5 MSRP: $119.95
Description: QJE PS30SWIII switching power supply provides 13.8 VDC at 20 amps continuous, 30 amps surge. The output voltage is adjustable from 9 to 15 VDC. Red and black terminals on are the rear panel (30A). The backlit panel meter may be selected to display voltage or current. There is a Noise Off-Set control that can be adjusted to eliminate pulse noise from the power supply. Ripple is less than 100mV p-p at load. Input is 110 VAC. 6.1 x 2.8 x 8.1 inches 3.3 pounds (155x70x205mm 1.5 kg).
Product is in production.
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HB9FSI Rating: 4/5 Sep 30, 2017 12:56 Send this review to a friend
It would be great but...  Time owned: 0 to 3 months
Grabbed the power supply from a local store as a spare cheap power supply for my FT-891. No other store in the Zurich area had anything similar and I didn't want to wait for an online shop purchase.

Generally it's a good product and does the job without hesitation, although one could clearly hear the harmonics every 30-35 kHz on the 160m (that's annoying) and also a bit on the 80m.

The quality/price ratio is very high.
It clearly can't be compare with a 200-300 bucks good 30A power supply (industrial grade)

Fan is a bit annoying too, but this can be improve when the warranty will be expired.
ZL2AUA Rating: 5/5 Jan 31, 2017 20:31 Send this review to a friend
Great compact PSU  Time owned: more than 12 months
I've had one of these for about four or five years now, and it's a good little power supply.

The Noise Offset feature is occasionally useful, and it's certainly a cheaper solution than spending a fortune trying (usually unsuccessfully) to completely eliminate the switch-mode hash. If a spurie lands on your frequency just twist the knob a fraction and it disappears!

The fan is noisy as all hell, but it should only come on if the unit overheats - despite the experience of the previous reviewer, it should NOT be on all the time. It is triggered by a cheap temperature-sensing switch , which packed a sad in my unit, such that once triggered, the fan would not shut off again. I replaced the switch with one of a slightly higher temperature rating, and fastened the aluminium plate on which the heat-generating components are mounted (in the absence of a proper heat-sink) more firmly to the steel case base, with heat grease between to help transfer the heat from the plate to the case. Then I cut a hole in the shelf below the unit and mounted below it the quietest 12v fan I could get to blow cold air over the bottom of the unit. Result - no more noisy fan.

As bought, then , it's not perfect, but with a little help it does its job without fuss. The unit now happily powers my Icom 7410 and 2700H rigs. As long as it keeps going, I'll keep it.
N8FZ Rating: 5/5 Apr 24, 2012 09:08 Send this review to a friend
Low cost and clean!  Time owned: 3 to 6 months
I beleive this power supply is new to the market. It's compact size and price were deal makers for me. I am only using it to power up a VHF/UHF dual bander so I do not push it too hard. It does have a fan that runs all the time that some may feel is too loud. But is not a problem for me.

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