[Elecraft] Silent power supply for a K3s

[Bert]

Linear PSs are not noisy as far as I know. You're comparing apples and 
oranges!! ;-))

Bert VE3NR



On 6/12/2019 9:17 AM, Harry Yingst via Elecraft wrote:
>   Another vote for the Astron Power Supplies they work well.
>
> Use the shortest run between the PS and radio you can and of a heavy gauge wire.
>
>
>
>      On Tuesday, June 11, 2019, 6:15:14 PM EDT, Bob Nielsen - N7XY <n7xy at n7xy.net> wrote:
>   
>   The Astrons are quiet and pretty reliable.  I have had a RS20 since 1980
> and the only problem I had was cured by replacing the regulator chip
> about 35 years ago.
>
> Bob, N7XY
>
> On 6/10/19 5:04 PM, Alan Corbeth wrote:
>> I have an Astron RS35 power Supply purchased in 1991.  There was a period where I didn’t use it for ten years.  Now it’s in use daily and so far it continues to be totally quiet.
>>
>> Alan
>> K7FH
>>
>>> On Jun 10, 2019, at 3:56 AM, Bill <w2blc at nycap.rr.com> wrote:
>>>
>>> I have several Power Werx switchers and prefer them for their size over the heavy analog supplies. Fans are not a problem (actually, I hear nothing from them at all) - IF you design your radio desk for proper equipment placement. Place the power supply at your right hand - and you WILL hear noise, XFMR, fan, etc.
>>>
>>> It is amazing what proper station design/construction can do for making silence. Open faced metal shelving and bare desktops don't cut it.
>>>
>>> Just for grins, I put one of those Nanoxia fans in my IC-7300 and silenced it completely. Worth the few dollars and effort. No temperature changes noted. Hmmm - KPA500?????
>>>
>>>
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