Astron Voltage adjustment?
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Lynn Burlingame
Jul 2, 2010, 11:57:54 PM7/2/10
to ~PNWVHFS Reflector
Anybody able to help me adjust the voltage on a RS-50A? I need to bump it
up to 14.5 volts for use with a PWRgate and an AGM battery.
up to 14.5 volts for use with a PWRgate and an AGM battery.
Lynn
N7CFO
Clay W7CE
Jul 3, 2010, 12:51:30 AM7/3/10
to ~PNWVHFS Reflector
Lynn,
All of the Astron power supplies that I've had are adjusted the same. If
you remove the top cover, you'll see a PCB mounted upside down in the center
of the power supply. If you check underneath it, there is a PCB mounted pot
that controls the voltage. I've been able to adjust it by feel without
removing the PCB. If you don't like doing that sort of thing "live", you
can adjust it, check the voltage, turn it off and repeat until you get what
you want. You should have no problem getting 14.5V.
All of the Astron power supplies that I've had are adjusted the same. If
you remove the top cover, you'll see a PCB mounted upside down in the center
of the power supply. If you check underneath it, there is a PCB mounted pot
that controls the voltage. I've been able to adjust it by feel without
removing the PCB. If you don't like doing that sort of thing "live", you
can adjust it, check the voltage, turn it off and repeat until you get what
you want. You should have no problem getting 14.5V.
73,
Clay W7CE
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Mike Lewis
Jul 3, 2010, 6:20:28 AM7/3/10
to N7CFO Lynn, pnw...@googlegroups.com
http://www.repeater-builder.com/astron/astron-index.html
The RS-50A link is broke, but the RS-50M is the same with meters. Adjusting R5 inside should do it. Should be on the PCB based on my SS-30M and RS-70M model recollections. I have the Super Powergate and AGM installed in my station here and also used it for my rovercycle.
Mike Lewis
K7MDL
Grid Locator CN87xt
Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org)
Visit the K7MDL Amateur Radio Pages web site at http://mysite.verizon.net/michael_d_lewis/index.html
Elecraft K2 #2633
The RS-50A link is broke, but the RS-50M is the same with meters. Adjusting R5 inside should do it. Should be on the PCB based on my SS-30M and RS-70M model recollections. I have the Super Powergate and AGM installed in my station here and also used it for my rovercycle.
Mike Lewis
K7MDL
Grid Locator CN87xt
Member of Pacific Northwest VHF Society #C96 (www.pnwvhfs.org)
Visit the K7MDL Amateur Radio Pages web site at http://mysite.verizon.net/michael_d_lewis/index.html
Elecraft K2 #2633
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