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Author Topic: QJE PS30SWII  (Read 8464 times)
WX2S
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Posts: 830




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« on: June 14, 2012, 03:04:27 PM »

Hi, all,

Does anyone here own this power supply? How's the fan noise?

Thanks,
- Steve (KF2IO.)
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73, - Steve WX2S.
I subscribe to the DX Code of Conduct. http://dx-code.org/
K6LCS
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Posts: 1855


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« Reply #1 on: June 14, 2012, 07:40:48 PM »

As quiet as the Alinco DM-330 (grin). You should hardly notice it. If it is noisy, then return to your dealer for a replacement or warranty repair.

Clint K6LCS
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Clint Bradford, K6LCS
http://www.work-sat.com
WX2S
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Posts: 830




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« Reply #2 on: June 28, 2012, 11:44:33 AM »

I actually wound up getting its 50A big brother. There is some fan noise, but it's hardly a bother.

- Steve (KF2IO.)
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73, - Steve WX2S.
I subscribe to the DX Code of Conduct. http://dx-code.org/
KC1MK
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Posts: 24




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« Reply #3 on: July 13, 2012, 01:05:19 PM »

I have used one for the last 8 months, and it works very well for my purposes. My main rig is a Kendwood TS-590S, and the backup is a Yaesu FT-950. The supply also powers several accessories in the shack.
There is some noise on 160 and 80, but it is easily tuned away as needed with the noise offset control on the supply.
73,
Jeff, KC1MK
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DS3ART
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Posts: 1




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« Reply #4 on: January 20, 2016, 09:37:39 PM »

I have bought this PSU about a month ago through eBay.co.uk, so it is not easy for me  to get replacement or warrant repair since I am in far east (Korea). Mine has a small grill in front of the fan and when I removed it, it became a little bit quieter. However fan noise is still audible and, as time goes by, it sounds more noticeable. When the output voltage is lowered by using the front knob the noise becomes less. So I guess if I reduce the voltage into the fan then the fan speed will be slower and it will become quieter. However I wonder if there is any other systematic way to control the fan speed. There is a semi-variable resistor near the socket going to fan on the PCB. Maybe it can be adjusted so that the voltage to the fan can be changed. However I am sure. Anybody have any experiment with this kind? -73 yong-joo
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