Have forwarded the questions to AA3ID who has the amp apart. We are third hand at least on this amp but it did operate at around 60 watts for ten years at 145.110 feeding 800 feet of 7/8 hardline into a ham cut db224. when the tower came down it was given to me and i misread the pencil scratching on the front, .2 to 1 watt... It ran quite nicely, for a little while when accidentally driven with twenty five watts during a repeater swap. I believe the original owner KB4TOH Mike did a conversion to the 2 meter band. not sure. Thanks