The samlex and astron switching power supplies the fan is temp controlled.
----- Original Message -----
From: "Butch Bussen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, June 03, 2012 6:04 PM
Subject: Re: Could it be time to replace My old trusty Astron RS35 Power
Supply?
>I have an mfj swithing supply, it seems to work o.k. but I don't use it
> much as it has a fan that runs all the time. It is noisy and runs 24
> hours a day which I don't like. Do any of the ones you guys are talking
> about have temperature control on the fans?
> 73
> Butch
> WA0VJR
> Node 3148
> Wallace, ks.
>
>
> On Sun, 3 Jun 2012, colin
> McDonald wrote:
>
>> I suspect they are as reliable as anything.
>> I've used the newer alinco supplies that are similar to the jet streams
>> and
>> never had a single problem with them...no noise or anything.
>> They've got a good sized heat sink on them so they don't heat up much
>> even
>> at full load.
>> Switching supplies are as reliable as the liniar supplies these days.
>> It's old verses new I guess...lots of people have successfuly used
>> switching
>> supplies for many years without difficulty...others have had problems so
>> they believe the liniar supplies are the only way to go...but they fail
>> as
>> well.
>>
>> 73
>> Colin, V A6BKX
>> ----- Original Message -----
>> From: "Tom Behler" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Saturday, June 02, 2012 3:09 PM
>> Subject: Re: Could it be time to replace My old trusty Astron RS35 Power
>> Supply?
>>
>>
>>> Colin:
>>>
>>> Would you have any thoughts on the reliability of one of these, or a
>>> similar
>>> Jet Stream, in comparison to the standard old linear Astron supply?
>>>
>>> The Jet Stream is obviously cheaper, but I don't know if I'd ultimately
>>> regret that decision someday, if I didn't go with the Astron.
>>>
>>> 73 from Tom Behler: KB8TYJ
>>>
>>> ----- Original Message -----
>>> From: "colin McDonald" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Saturday, June 02, 2012 3:43 PM
>>> Subject: Re: Could it be time to replace My old trusty Astron RS35 Power
>>> Supply?
>>>
>>>
>>>> that sounds an awful lot like the alinco 30 amp PS's.
>>>> but those are a bit pricier I think.
>>>> I suspect jet stream is owned by alinco or perhaps the reverse, or they
>>>> have
>>>> their stuff made by the same manufacturer.
>>>> the little alinco power supplies, as well as the jet stream you
>>>> described
>>>> are terribly useful in the shack with that cigarette lighter plug and
>>>> the
>>>> binding terminals...as well as the extra switch on the front to turn
>>>> those
>>>> on and off...not to mention, the alinco has variable voltage and a knob
>>>> supposed to work to get rid of any RF noise that the supply causes...
>>>> There are a couple used at our ham club station and they work great.
>>>>
>>>> 73
>>>> Colin, V A6BKX
>>>>
>>
>>
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