[WIham] upgrading power supply got a questoin

[Jimmy c]

Hi,

well im going to upgrade my power supply. for my little HXT 252 I was using a home brew power pack. well that radio has a new home. setting on my bench I have a relm SLSV40 VHF & a SLU 25 UHF. my little power pack can handle either so im going to buy a aston power supply. Now for the live of my I cant remeber what they draw, 9 or 10 amps I think, So im thinking that a ASTRON RS-12A would do the trick, but as i understand its only 9 amps. but  then I thoug a  Aston RS-20A. I heard good things about the 
RS-12A. I can aford the RS-12A easyer but could if i hard to go with the RS-20A if that the supply that would power either of these rigs. I just cant seem to find a manauil on line to tell me for sure so does anybody know? would hate to buy the RS-12A and fine out its not enough. keep in mind i will not be running both rigs and the same time. can somebody refresh my brain. 

thanks
73 
KC9PXZ
Jimmy C
Norwalk WI