wrote in message
ups.com...
You want a crowbar and a fuse.
Avoid switchmode supplies like the plague.

This is a link to one review of the RS-10a:
http://www.eham.net/reviews/detail/3726

This link to a dagram shows a fuse:
http://www.repeater-builder.com/astr...ron-rs-10a.jpg

A long time ago in a different life (20+ years ago) I was responsable
for the operation of a 2 mtr repeater and I picked a Atron supply that
is still chugging along with no trouble. I don't remember which Astron
but at least back then, they made great supplies.

I added a surplus magnetic circuit breaker between the output of my
Lambda ~15A 12V supply and my equipment, followed by a seperate
fast acting, no falses ?(so far) crowbar. This is the BEST OVP (Over
Voltage Protector) I have seen in 30+ years of working in electronics.
Added a heavy si diode wired to shunt reverse voltage to ground.
This is located in the power distribution section of my system. With
this
I can directly power my radio room from my car, for emergencies, and
won't have to worry abvout areverse connection,or nasty spikes damaging
my equipment.
Power supply on floor feeds voltage/current monitoring with R&OVP and
breakers to protect and alllow me to power down sections to reduce
power load. Sounds complex and expensive, but it wasn't and I bought
everything surplus. The distirbution sections has stayed "the same" for

the last 20 years, I have gone through several power supplies. I have
connections for 2 lead acid gell cells, and an outside connection to
allow
an external +12V power source.

Think modular.
Build it in sections as needed.

Terry


Terry


There is a 10a on Ebay for $10 but it's missing the front print and don't
know if it's missing the fuse too. I think the best way to go is buy one
new. You just don't know the real condition of it and how long it was used.
The best one I could find new for the price is the Astron RS-7a. $55.

So it's either spend like $65 on a brand new one or buy one off Ebay.
What do you think? $10 for a 10A might not be too bad though if I use a
surge protector with it.

Thanks
Lucky