Manager


Manager - NA4M
Manager Notes

Reviews For: Samlex SEC-1223

Category: Power Supplies

eMail Subscription

Registered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted.
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
EB5ESX Rating: 2006-10-10
Very Good Time Owned: 0 to 3 months.
Bought it some days ago in AES Orlando.
It is a fine Power Supplie for that price.
No fan-noise and seems very solid.
Converted to 220v without any problem.
KE5IHC Rating: 2006-08-15
works fine Time Owned: 3 to 6 months.
when i bought my ft-2800m. i needed a ps, hro reccomended the 1223, over the kenwood, it's worked good.
KX1C Rating: 2006-05-22
Up and Running Time Owned: 0 to 3 months.
Older power supply up in smoke after 12 yrs. of faithful service. Wanted a smaller PS in the shack so went with the Samlex 1223 as a replacement. I like the size, lack of RF hash or any other interference with the computer and transceiver. None what so ever and it is located with in 3 feet of both units. So a thumbs up at this point. If any changes with this PS over the coming months, I will update review.

David KX1C
KB6HRT Rating: 2006-02-23
No Hash Time Owned: 0 to 3 months.
Just wanted so say the Samlex 1223 is a great swithing power supply, I use inside and outside antennas on my Shortwave and HAM radios that are close to the proxsimenity of the Samlex 1223 power supply, no noise or hash and its small size is a plus as well. Had a Astron SS25 with meters before I brought the Samlex1223 and the Astron had fan noise and hash that would come over my Shortwaves radios when on there wipe antennas while in the radio room, the Samlex 1223 does not. KB6HRT
KE6PID Rating: 2006-02-22
Great Value! Time Owned: more than 12 months.
This switching supply is electrically quiet, will provide 23 amps at 13.8 volts as it should. It's small and doesn't get too warm, even with extended usage at high current draw, although the thermostatically controlled fan switches on when the supply is providing nearly full output for an extended time period.
WA8EBM Rating: 2006-02-20
Mine works fine Time Owned: more than 12 months.
Bought it October of 2001. Use it daily. No hum and can find no noise on any ham bands from the 706MKIIG that is sitting on top of it. I guess I am in the lucky majority of owners. I am sure some of them got a bad run of parts somewhere but there have to be many thousands of these in everyday service. Would buy another one without hesitation.
SM2SXA Rating: 2006-02-20
Warning! Time Owned: more than 12 months.
For all of you that consider Samlex 1223 as a psu for using on short wave, Warning! The unit generates severre spurioses.

Users who have not discovered that earlier, sorry for you. Maby you don´t listen, just transmit?

A good thing is that the unit can successfully be cured within the original shell. It requires HF-filering on both input and output, and better electrical contact between bottom and top cover to keep the "transmisions" inside the box. The original filters attennuate the switchfrequency and some low harmonics quite good, but the HF leaks out of the box across the original filters. I have done a mod and can send pictures and text to someone who can publish it on the web. Mabye mods.dk can be a place for that?

73 de SM2SXA

----------------------
Earlier 3-star review posted by SM2SXA on 2004-01-28

I agree on the strong spurrs (S9++) on 160/80m that makes the bands unuseable if the PSU is near the antenna, and a lot of noise all the way up to 10m.

I cured my 1223 with replacing the original AC intake with one that integrates a Schaffner AC filter and a homebrewed DC filter board with some heavy gauged inductors on ferrite cores and decoupling capacitors inside the box, allso replacing some of the 22n original (RFI) filter caps on the pcb with 100n. I allso sanded off the paint on the contact surfaces between shassis bottom and lid.
Spurrs whent down from S9++ to barely receptable on 160m and the unit is now the jewel in my shack.

de SM2SXA /Urban
VK5SN Rating: 2006-02-17
I loved it Time Owned: 3 to 6 months.
After reading all the reviews here, I bought one from Associated Radio in the US to take with me on my trip to India. I was totally amazed to get a feel for its weight and size when I took it out of the package. Used it for a month (was QRV as VU3SNM) and put it real good use. I was running SSB, PSK31, RTTY etc with my FT857. It worked flawlesly with no issues on 80 m thru 2 m that I operated. To me it seems like Samlex has modified the filtering section. I would strongly recommend this piece of equipment to hams like me who travel a fair bit with their portable stations. I am totally impressed with this power supply.
KI4MIU Rating: 2006-02-07
Great Time Owned: 3 to 6 months.
When I bought the Yaesu FT-7800R at HRO the day after Christmas I could not wait to spend my Christmas cash! I went to HRO and bought the FT-7800R and this power supply was recomended. At the time I bought it I did not know how many amps it was rated. When I got home I saw the number of amps it drew and I was amased at the price I paid for it. IT WAS SO CHEAP! I will use it to power the FT-857D when I buy one!
POOBA53 Rating: 2006-01-19
News on Improved Design Time Owned: 6 to 12 months.
I have this power supply and have experienced no birdies on the lower bands. I wrote to the manufacturer regarding the noise as others have reported and was pleased with the enginerr's response:

"We have improved the design of SEC-1223 since early 2005 to further reduce the conducted and radiated emissions. PCB versions SEC12-23-R1 and SEC12-23-R2 incorporate these modifications. The unit has been tested in compliance with CISPR PUB. 22 and FCC Part 15, Class B limits. As per these standards, the EMI was found to be within the specified limits for the following frequency zones:

* Conducted emission on the AC power line : 150 KHz to 30 MHz
* Radiated emission : from 30 MHz to 1000 MHz



In the above design, among other improvements, we have also improved noise filtration on the DC output side by including a toroidal choke and ferrite sleeve on the output wires from the PCB to the output terminals."

Just thought I'd pass this along.