[ARC5] Power supply suggestions

[Sean Barton]

Todd,
The receivers should work all right with 12V but the modulators and 
transmitters have relays that operate on 24-28V.  The relays may not 
close with 12V on them.  They would have to be rewired in parallel from 
already being in series.

Buzz,
Are those lawn mower batteries lead-acid or are they the "Gel Cell" 
type?  I might consider those if they are not lead-acid.

Sean
KB0OVD

Todd Bigelow - PS wrote:

> I'd like to hear more about this. I was under the impression that
> switching supplies were noisey as in RF noisey? I've still never been
> able to find out how much or even if noise is introduced by the
> dynamotors, so maybe I shouldn't sweat it.
> 
> Somewhere I read that it's possible to run the 28v equipment off 12v by
> swapping the dynamotors and changing out the 12v tubes to 6v versions.
> This just sounds way too simple though, I'm guessing there's more to it?
> 
> I'm getting close to light-off day myself, so you can bet I'll be paying
> close attention.
> 
> 73 de Todd/'Boomer'  KA1KAQ
> 
> David Stinson wrote:
> 
>  > I recently bought a CO2 lazer switching power supply
>  > off Ebay that is 28 volts at 75 amps, 2000 watts continuous.
>  > Weighs 17 pounds. Works great.
>  > Paid just over $200 for it, which
>  > I think was a screaming good deal.
>  > If this won't run it, it won't run at all. ;-).
>  >
>  > "Paul H. Anderson" wrote:
>  > >
>  > > I have bought a number of 28V Lambda power supplies from eBay -
> 
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