In article ,
EASI54 wrote:

bought a used Icom-m710 SSB and it didn't come with any of the
necessary
accessories to get it up and working. So I started looking
for a power
supply, and the manufacturer of the radio recommends their PS-66 DC-DC
converter for a 24 volt setup to drop it down to 13.6 volts.
New, it COSTS
ABOUT $1100!!!!!!

cheaper way to do this?

Numar makes some really nice 24-32Vdc to 12Vdc@35Amp Marine
DC to Dc Converters, for about half that price. You actually may
only need a 20Amp version for that Icom Radio, which will be a bit
cheaper.

Bruce in alaska
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add a 2 before @