I hesitate to answer to this, it's been so long since I had a TR7 (My 2nd rig) and my memory of it is not clear.
Given this disclaimer, I believe you'll find an adjustable piece, two wafers with a rectangular key hole in the center part to turn it. Cap or resistance, I don't recall what it was, but it controlled the output and you could lower it way down or get more than the rated output with it (at the expense of the transistors if you pushed it too long). I wish I could remember exactly where it was, but I believe it was on the heatsink or close to it at the back side of the rig. Might have been blue, I'm not sure, maybe it was accessible from the outside of the radio, from the bottom rear? I think I'd remember it if I saw the TR7 again, the adjustment was in plain sight. I suspect if you backed it down you'll be fine with the output from the KPA-500. For some time the TR7 was used for EME, the person who bought mine was modding it for that and perhaps in an EME group someone might have good knowledge of the TR7 and where this was exactly located. 73, Gary KA1J ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
