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Author Topic: samlex 1235 switcher vs linear.anyone?  (Read 1506 times)
VE7REN
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Posts: 635




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« on: August 30, 2018, 05:01:44 PM »

wondering if anyone on here ahs done or has a samlex switcher and done comparisons vs a Astron rs35a or m linear? ive had both,but was unable to do a comparison at the time,and have now sold the rs35. sooo….whats your thought on the samlex switchers?
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WB4SPT
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« Reply #1 on: August 31, 2018, 12:52:56 PM »

not sure what you mean by comparison, but, I like the samlex.  A tiny bit of 160m energy escapes it via the 12V wires. 
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VE7REN
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« Reply #2 on: August 31, 2018, 03:25:12 PM »

in comparison as to noise or birdies found in the switcher. does anyone prefer one or the other? im trying to migrate to ALL switcher,but want some input from others that may have tried this,and stuck to it
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AA4PB
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« Reply #3 on: August 31, 2018, 03:52:22 PM »

Switcher advantage: Small size, light weight.
Switcher disadvantage: Possible RFI, potential fan noise, more difficult to repair.

Linear advantage: No RFI, no fan noise, easier to repair.
Linear disadvantage: Large size, heavy.
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Bob  AA4PB
Garrisonville, VA
N8AUC
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Posts: 646




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« Reply #4 on: August 31, 2018, 06:52:24 PM »

I've had a Samlex 1223 switching power supply for 9 years.
It has been rock solid reliable during that time.
It powers all radios in my shack.
No RF noise detected yet on HF, VHF, or UHF.

It does have that weird output connection on the back.
But I built a pigtail for it that goes right to Anderson Power Poles, and that solved that issue.

73 de N8AUC
Eric
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K0CWO
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Posts: 550




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« Reply #5 on: August 31, 2018, 06:59:24 PM »

Had a Samlex 1223 for about 20 years before lightning took it out.  Excellent quiet supply.  Know a guy that has a 1235 and the fan kicks in quite a bit and is relatively noisy compared to the 1223.  I opted for an Alinco DM-330MV.  Nice power supply that is quiet like the 1223 and I prefer it over the 1235.  When I say “quiet” I’m referring to fan and RFI noise.
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VE7REN
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« Reply #6 on: September 01, 2018, 02:28:44 PM »

I own a 1223 and 1235m. neither produces any hash that I can determine,although I wish I could've compared a Astron 35 to either of these. the 1325 does have the fan come on periodically,but produces full power for my whole shack with many items connected to it via a rigrunner
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W4FID
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Posts: 233




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« Reply #7 on: September 02, 2018, 04:31:24 AM »

My Anstron 35 amp has powered everything for about 20 years. It's on 24x7 sines some radios in the shack are always on. Zero problems -- no hash, no fan noise, doesn't run too hot (it's in my Florida room where even with AC it's about low 80s in the middle of summer afternoons). I don't care about the weight since it sits on a desk not used portable.
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LA9XNA
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« Reply #8 on: September 03, 2018, 12:05:56 AM »

I did a comparment many years ago with a 1223 and a Diamond 30 amp. The 1223 did have a mimimum of noise in the bottom pf the waterfall. The Diamond did not. 
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AD5X
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« Reply #9 on: September 04, 2018, 04:10:12 AM »

I have a review of the SEC1235 in the "Reviews" section of my website at www.ad5x.com.
Phil - AD5X
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K5NOK
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Posts: 96




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« Reply #10 on: September 05, 2018, 10:14:06 AM »

I have the SEC1235M and I have a Switcher Astron, the SS-30.
Quiet is the word I would use for both these switchers, RFI-wise.

My Astron SS-30 was a little low on voltage when I first bought it at 11.75. but it has a variable pot you can adjust and it was fine after that.

The meters were interesting to me for about a week on the SEC1235M but I almost never look at them now.

The SEC1235M is a lightweight, small foot print PS that easily powers my 100 watt HF transceivers.
The Astron SS-30 is a little bigger but also works great with Modern HF rigs.
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VE7REN
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« Reply #11 on: September 05, 2018, 05:15:10 PM »

thanks for the replies phil and gang. mucho appreciated... anyone else?
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