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Reviews For: Samlex SEC-1223

Category: Power Supplies

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Review Summary For : Samlex SEC-1223
Reviews: 157MSRP: 129.99
Description:
Switching Power Supply

Helpful RFI reduction mod by ZL2DF: http://www.n0ss.net/samlex_1223_rfi_mods_from_zl2df.pdf
Product is in production
More Info: http://www.samlexamerica.com
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
001574.4
KO1C Rating: 2004-01-07
Great Supply! Time Owned: 0 to 3 months.
I have both a 1212 and a 1223. No problems with either; both work as advertised.

I've had the 1212 for a few years, the 1223 for a few months.

David, N1ZHE
KH7L Rating: 2004-01-07
No Problems Time Owned: more than 12 months.
I own the power supply for about 4 years. No problems. I've connected it to about 20 different rigs, no problems. Used it for Contesting too. Great if you can find them on sale.
KO7V Rating: 2004-01-06
Excellent design Time Owned: 0 to 3 months.
I just got a Samlex 1223 ($99 from HRO) to use with a Yaesu FT100D. It works great on HF, used it on 80, 40 and 10 Meters, with the 1223 about 5-feet away from my tranceiver. Regulation is excellent all the way to 20 amps. I also tested directly shorting the output many times with no problem.

An earlier review said the 1223 had no AC-line RF filtering. My unit has two line-rated ceramic caps on the AC-input connector tabs to the ground lug (neutral). On the circuit board there is a dual-coil common-mode AC-input choke along with two huge rectangular line-rated (differential) filter capacitors. The DC-output has a huge torroidal Pi-output filter (3 parallel windings) with electrolytics on either side, and also a hi-freq solenoid-type hash filter. It would be easy to add common mode output filtering to the DC output line by winding both DC output leads through the proper torroid core. You would probably only need this on 160 and 80M if the unit is close to the antenna or very close to the receiver, and depending on how much common-mode rejection you have on the receiver power and ant. input.

The mechanical design and heatsinking is great, the two MOSFET switches and rectifier's heat is conducted to the bottom plate via a very thick alum. angle. Workmanship is good, with brass press-serts holding important screws. The unit needs an LED to indicate DC output. That would be easy to add. All in all, this is an excellent no-nonsense supply for the price.
From: Ron Fial KO7V
IZ0EAN Rating: 2003-12-31
Great Time Owned: 3 to 6 months.
Very good, i use it with my IC706MKIIG always at full power, and the P.S. is always cool, the internal fan is not noisy, the power is very clear of any noise and ripples, very nice PS.

73 de IZ0EAN, Daniele
FRANKM12 Rating: 2003-12-23
GREAT! Time Owned: 0 to 3 months.
To all,

I just turned on my Samlex SEC 1223 late afternoon. I just got my homebrew antenna done and hooked up everything and turned it on. The little Samlex power supply is perfect for my IC V8000! This is a great pair. The "on" lite stays on for quite a few seconds after turning the device off, which is a good thing. GREAT device with a 3 year warranty. Things with a 3 year warranty generally are good quality and the Samlex SEC 1223 is no exception!

73
frank
KG4VLQ
S57MHA Rating: 2003-08-15
Nice PSU Time Owned: more than 12 months.
I use this one for about one year with my IC745. I like its size, weight and 20A. It is great for portable use and also for home. The fan is bit loud, but it works! It cools PSU back to normal temperature when I work in at full power in SSTV. And I don't hear any noise from it in my rig.

It works excelent for me!
KF4SBS Rating: 2003-07-02
awsome the best power supply evere Time Owned: 0 to 3 months.
THE SAMLEX 1223 I BOUGHT IT WORKS LIKE A CHARM
ID SAY IF YOU WONT A REALLY GOOD PS LOOK NO FATHER
THIS IS IT.I USE MINE ON A NEW YAESU FT-2800M WITH UP TO 65 WATTS OF POWER ON HIGH AND
IT WORKS WITH NO PROBLEMS AT ALL ITS AWSOME...

73s FROM KF4SBS
ON4MGY Rating: 2003-06-28
No RF hash????? Time Owned: more than 12 months.
I've been using this power supply for about 20 months and must say it works quite OK. You'll get 20 Amps at ease and the supply is light and little. When I've connected it to my FT-817 I've heard lots of noise all over the band. I've connected my FT-840 and the result was the same. After inserting a line filter between the power supply and my transceiver, all was ok. For me, the supply is ok with the use of an external line filter.
WA2TCE Rating: 2003-06-18
I'm dissapointed Time Owned: 6 to 12 months.
Nice price, size. Unfortunately, the amount of RF noise in the 80/75 meter frequency range makes me unable to recommend this to anyone. It's bad enough there are spurs every 20 hkz or so, there are others that move down in frequency, and take about 30-45 seconds to clear the frequency you are trying to listen to. A call to Samlex got me a lecture on why some noise is to be expected from switching power supplies.

But, it's not as bad as my Icom PS-85, the worst power supply fraud ever foisted on the ham community.
K0SM Rating: 2003-05-21
*great* for the suitcase Time Owned: 0 to 3 months.
I picked up an SEC-1223 for travel with my IC-706. I can't find much noise above 20 Meters when I'm using a simple dipole up hung up in the trees. Below 15MHz, however, I can find the birdies, and they increase in intensity for the lower bands. I don't have much of a problem on 30 or 20m, but on 80 and 160m the signals are extremely loud.

I think this supply is fantastic for the traveler who wants to fit his 100w HF station in a corner of his suitcase. However, it will likely be a serious limitation for anyone considering low-band dxing with one of these in the shack. Of course, these bridies only appear every 20 kHz or so, so you can steer around them if you must.

I think this is a *great* power supply if you need something lightweight and you intend on operating primarily above 10MHz (absolutely dead quiet on 6m and up, as far as I can tell). As someone already mentioned, you can take steps to reduce RFI by filtering the inputs and outputs, but if you are looking for something for the permanant shack, I would consider getting a heavy-duty standard supply. --Andy K0SM