[TenTec] which power supply…station efficiency

[Steve MIller]

Kim,
 
     Very interesting post.   Would you happen to have a schematic of the regulator boad you built for your RS-35M that you would be willing to share?   Thanks,  73 Steve N0SM
 

________________________________
 From: Kim Elmore <cw_de_n5op at sbcglobal.net>
To: Discussion of Ten-Tec Equipment <tentec at contesting.com> 
Sent: Friday, December 13, 2013 8:55 PM
Subject: Re: [TenTec] which power supply…station efficiency
  

I took a slightly different approach: I built a new regulator board for 
my RS-35M linear supply that allows for remote voltage sensing. Thus, I 
regulate right at my distribution point, *not* at the supply output 
terminals. This has reduced any voltage sag to my O II by quite a bit. 
I've also increased the regulated voltage to 15.0 VDC which has reduced 
power output variation across bands. Max output remains 100 W, but now 
only drops to 87 W on 10 m, slowly increasing to 100 W on 80 and 160 m.

Kim N5OP

On 12/13/2013 10:40 AM, denton sprague wrote:
> Ok..got some nice replays on all of this..
> Currently have one of my Astron 35M's feeding either the Omni 7 or the Eagle from a power strip….this should do until I have done more research on a more efficient power supply situation.
> I would prefer to have separate power supplies for each of the hf rigs just to get some isolation between them rf wise….has this been a problem with anyone else?
> Have been using clamp on ferrite chokes on the dc line from the strip to the rigs but can't tell if they are really doing anything.
>
> On Dec 8, 2013, at 8:14 AM, denton sprague <denton at oregontrail.net> wrote:
>
>> I am upgrading a bit here…
>> got a new full sine wave ups coming with two aux battery packs to replace my old cyberpower 3000 ups.
>> Ups has AH rating of 336 and each aux battery pack is 864 AH….
>> I am also looking at replacing my Astron 35m power supplies with more efficient switching power supplies or running my TT Eagle or my Omni 7 and various sundries that use 12 vdc with a battery pack, charger and a battery booster when needed.
>> So my question is…what switching power supplies are my fellow hams using and how well do you like them?
>> I am aiming for efficiency, rf quietness and flexibility.
>> Other than the station, the ups will be used to fire a smaller flat screen tv, satellite receiver, iMax and a lamp….nothing total over 500 watts draw…at least to my calculations.
>>
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