[Premium-Rx] RF590 question

[k.gruenberger at chello.at]

Hi list!

I´ll may be lucky purchasing a RF590 for about $1000.
Now I would like to what to look out on the rig when testing it.
Any advice what I should check?
Whats the difference between 590 and 590 A?

Thanks for the help!

Greeting from OE!
Keith
P.S. Thanks to everybody that responded on my last info request regarding Mackay!

P.P.S. Merry Xmas and a happy new year to everybody!