On Sat, 5 Jun 2004 15:49:48 -0600, jack wrote: >my experience is that one needs MORE than 20 amps for the Orion. an Astron >20 did not do the job, but a 35 does well. Read the specs on your Astron. An Astron 20 is NOT rated 20 amps continuous, but an Astron 35 is. Isn't marketing wonderful? Jim K9YC