I see that amp is vapor cooled. Seems like I remember there were a lot of vapors floating around in the air back in the '60's in some of our MM's. We didn't do too good, but WHO CARED? 73 Tom W7WHY > Boy, I took that one hook line and sinker, Tree > > http://www.cpii.com/eimac/catalog/140439.htm > > Mike, W4...EGG..on...FACE