I 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!!!!!!

Anyone know of a cheaper way to do this?

Jean