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| Reviews Summary for Daiwa SS-330W Switching Power supply |
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Reviews: 15
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Average rating: 4.6/5
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MSRP: $139
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Description: Dual Meter (Ampere & Voltage) 30A continuous Output
<br>
current; 5V - 15V Output Voltage
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Product is in production.
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More info: http://
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KC5ZRQ
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Rating: 5/5
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May 23, 2011 09:41
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Excellent Long-Term Results
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Time owned: more than 12 months
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I have been using this to run a digipeater for more than four years. It has been in a hot boiler room on top of an apartment building for all of that time. I pulled it down today to do some work on some other equipment. I opened it up and it was as dusty as it could be. It was in a very harsh environment. I used a can of air to blow out the dust. I checked the voltage and put a 15 amp load on it. It is working as good as it did on day one. It does have a fan on it, but it runs slowly and isn't very loud at all. Inside it has two large heat-sinks. I would recommend it.
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KL2TC
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Rating: 5/5
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Jul 6, 2010 18:42
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Dependable
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Time owned: more than 12 months
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I've been running mine for over a year. I use it to power my Yaesu 757 and a Yaesu 2900. Not a stagger or hiccup. Super quiet and out of the way. Only one set of lugs but they are both post and banana plug. There is plenty of room to hook up two terminals to each post. No supply issues at all. Still as nice and sweet as the day it arrived.
73
Al
kl2tc
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W8QAP
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Rating: 4/5
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Dec 8, 2009 06:39
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Good but not great
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Time owned: 6 to 12 months
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This is a good choice if you need a bench power supply that will also power a 100W transceiver. The meters are rather difficult to read due to there small number size and poor background contrast. The voltage range of interest for transceiver use (12.5 - 13.8) is squeezed into about 1/8th of an inch on the scale so I use a digital voltmeter to set the output voltage. The V ADJ knob is detented in 15 degree steps so setting the voltage exactly may be difficult. The unit runs cool and if the fan is running, I do not hear it. The DC output posts should be on the rear for high current applications. I found the ground post to be rather small and testing revealed that the lug had rather high resistance to the power supply case. The lug was found to be mounted on the rear panel with a small star washer and making poor connection thru the painted surface. Scraping away the paint fixed that problem but I was surprised to see that there was no ground wire on the backside of the lug connecting it other common ground points in the power supply. An email to DAIWA regarding this finding went unanswered. The price for the SS-330W was $169. If your primary use is to power a transceiver I would suggest considering other power supplies before buying.
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KC2OYZ
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Rating: 3/5
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Mar 26, 2009 18:51
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Quiet but inconvenient
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Time owned: 3 to 6 months
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This is a good supply technically but it is not well designed, at least not for me.
Had an Alinco DM-330MV - it generated a lot of hash on BCB and their "patent-pending Noise-Offset circuit" didn't help very much. I switched to the Daiwa - no more hash. But unlike the Alinco, it has only one set of terminals, in the front and quite close up to the meters - not particularly safe or convenient. Also has no notch or pre-programmed 13.8 setting, unlike the Alinco, and the voltage control is again right in front - brush against it the wrong way and there will be trouble. It is also too high (square) for such a small supply - the Alinco is very low profile.
If these things don't bother you, go for this PS, if they do, look elsewhere.
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KG4WMT
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Rating: 5/5
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May 10, 2008 20:41
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Just What I Needed
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Time owned: 6 to 12 months
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Bought this about 10 months ago after reading eham reviews. It's the only power supply I've owned, so I don't have much basis for comparison, but it runs quiet and cool. It is also very light weight. The variable voltage setting means it can also be pressed into service as a bench power source for testing circuits. It does what I hoped it would. Can't ask more than that!
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WA3TRE
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Rating: 4/5
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Jan 10, 2008 15:54
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Nice Supply
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Time owned: more than 12 months
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Have had this supply for several years now. In the past, it powered an ICOM 737 transceiver and its present assignment is powering a Yaesu FT-726R transceiver. The supply has never missed a beat. Have never heard any hash or noise, but I was never bored enough to tune the entire band looking for it. It has powered the 737 on all bands, in all modes with no known issues. MINUSES: The meters and numbers are too small to be meaningful to an old-timer. The meters are not lighted. And can anyone tell me why manufacturers put the connections (especially the 30 amp'ers) on the front face? BTW, the volt meter is dead on with my GREENLEE 93-606 meter.
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RobertRumseyExK5DN
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Rating: 5/5
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Aug 4, 2007 05:46
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Just Perfect
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Time owned: 6 to 12 months
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The is one of the items that exceeds expectations. Very, very quiet. Does everything you expect it to do and comes in an attractive functional package. Hands down better than the overpriced Icom supply with more amperage.
No RF birdies that I can find and I don't think I have ever heard the fan. Without the meters I wouldn't be sure it was running.
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F5NZY
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Rating: 5/5
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Feb 8, 2007 08:30
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Light, Quiet, hight reliability...
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Time owned: more than 12 months
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I Love this Daiwa Power Supply. I also own an SS-330X (no volt adj) for over 10 years without any problem.
This second one will stay in Normandy for my /P station.
Very good value for the money.
73,
Stéphane, F5NZY
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W6OWH
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Rating: 5/5
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Jan 31, 2007 22:38
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Works great and looks good
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Time owned: 3 to 6 months
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Mine runs 24-7 and has been great with no birdies heard on any HF bands or VHU. Used in all modes SSB, FM, CW with IC 746 Pro and Ic-7000. Working all HF bands with no hash... in fact I noticed the hash from my Samplex 1223 supply on 80 meters when I ran both rigs at the same time on different supplies. Have pulled the Samplex and use the Daiwa supply to run all the rigs using a Rigrunner.
Yes, there is a slight fan noise but not anything like the MFJ 45 amp I had. A minor negative for the Daiwa is its size. If you are looking for an ultra small supply this isn't going to work for you. It is a little large and because of the handy handle it is not able to hold other rigs on the top to save desk space.
I think you will like this supply too.
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KF6IIU
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Rating: 3/5
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Dec 31, 2006 22:14
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Nice package but not *completely* quiet
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Time owned: 0 to 3 months
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A nicely packaged unit, capable of 30 A, very light and small, but puts out quite a few birdies on 20 meters and above and one or two S-units of hiss here and there on lower bands. If you don't need to transport it, get a non-switching supply, because all switching power supplies are apparently noisy to some extent. Fan runs continuously, but at a slow barely audible level when unit is not under heavy load. This unit is a tradeoff - 30A in a 5 lb, sub-shoebox-sized package. Unit can be converted to 220V operation (or vice versa) by moving an internal jumper.
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