I use exclusively the ASTRON SS-30M at my stations and shop. Actually have
3 of them. I find them to be reliable, acoustically quiet although I do and
can hear the fan switch on and off, and I find they are electrically quiet.
I did add a true GROUND terminal to the rear panel. Internally I connected
the AC ground/green wire to this point and the 12V DC Neg to this point.
This point becomes "station ground".
I also put a internal tooth lock washers between the outer shell and the
base where the 4 screws attach the outside cover. This assures the metal
parts are electrically bonded and not insulated by a layer of paint as found
in many instances with equipment today.
As far as I'm concerned, the SS-30M it is a very good supply for the money.
73
Bob, K4TAX
----- Original Message -----
From: "denton sprague" <denton@oregontrail.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Sunday, December 08, 2013 10:14 AM
Subject: [TenTec] which power supply…station efficiency
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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