[Elecraft] K3 power supply

[Dave Yarnes]

Leigh and All,

I have a Jetstream PS, but it's one of their smaller ones.  However, I find 
it to be quite competent and quiet.  My impression is that those good 
reviews are accurate.

Dave W7AQK


----- Original Message ----- 
From: "Leigh L. Klotz, Jr WA5ZNU" <Leigh at WA5ZNU.org>
To: <Gary at doctorgary.net>
Cc: <elecraft at mailman.qth.net>
Sent: Thursday, December 25, 2008 10:02 PM
Subject: Re: [Elecraft] K3 power supply


> Gary,
> I've been using a Progressive Dynamics RV supply, based on recommendations 
> from WB6ZQZ and others here:
> http://www.hsfdg.org/wiki/DcPowerSystem
>
> I first used an AGM battery and a Battery Tender / 5A solar panel system, 
> but found a bit of sag.
> I still use this for backup.
> So I switched to a Gamma HPS-1a, which I still have and use for traveling, 
> but it didn't do well for me on PSK or MFSK because the average current 
> draw is greater than 5A, which is what it has.
> But recently I switched the the Progressive Dynamics supply, in parallel 
> with the 80AH AGM (still with 5A solar backup) and so far it's working 
> well for me.
>
> Leigh/WA5ZNU
> K3 #51
> K2 #3121
> KX1 #712
>> I've been re-considering my power supply. I'm using a Heathkit PS which 
>> is a 20 amp linear supply. I just looked inside it and it's definitely 
>> showing the effects of age. It hasn't been used in quite a long time as 
>> I've used a TenTec supply with my Corsair & Omni since day one.
>>
>> Ihave a few things runing on 12V and they probably draw 2-5 amps on a 
>> steady draw. With the K3 I suppose my requirement would be 22A so I'm 
>> looking at a 27 or so amp load. I'm currently using wall warts to supply 
>> the 12V peripherals and would like to unclutter my station and meet all 
>> my "12V" needs.
>>
>> I'm considering several power supplies & looking at eHam reviews I see 
>> Jetstream. They have high reviews and make a nicely affordable 28A for 
>> $79 and 45 amp power supply for $149.
>> Anyone have any experience with these & the K3?
>>
>> I'm thinking the larger one might be a good choice in that the components 
>> wouldn't be stressed at my station. I do prefer low stress...
>>
>> Any thoughts on these supplies?
>>
>> Hope Santa was good to you!
>>
>> Gary
>> KA1J
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>
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