On 2015-02-03, at 1:19 AM, Charlie Cunningham wrote: > Hi, Eddy > > I used one of the old Ameco vacuum tube preamp/pre-selectors, that I > borrowed from my friend, bill, K4CIA, for my KAZ terminated receiving loops > several years ago. It was great! - had plenty of gain and because it was > vacuum tube, it wasn't susceptible to damage from transmit RF picked up in > the loop. I no longer have the KAZ loop, but I'm going to build another one. > Bill had a second newer JFET version o fthe Ameco, that I bought from him. > I expect I'll have to take more care with protecting the JFET device. T he > old vacuum tube Ameco pream work great onn 160, 80, 40 and 30m, where I used > it. F course I didn't need it with the 5-band quad for the higher bands - > mostly on loop on 160, where the antenna gain was low, but it was a very > quiet antenna, and I heard things on 160 that I couldn't hear before. I ran > the Ameco into the receive antenna input on my FT-1000MP. Worked great! > > 73, > Charlie, K4OTV\
Hi Charlie, Yes, they do, indeed, work great for me, too... I have both the AMECO nuvistor version here that I place before my old back-up Drake R-4---and which I got for a mere five bucks at a Hamfest!---as well as the solidstate version that I had before my K9AY loops & Beverage antenna. As I mentioned before, if overly strong signals happen to overload either one, I merely reduce the gain on them. Why any Ham who sees these wonderful old devices practically being GIVEN away at 'fests doesn't pick them up, is beyond me---I guess the more "proper" thing to do anymore is to whip out the ol' VISA card, & to buy a more modern "designer" pre-amp! ~73!~ de Eddy VE3CUI - VE3XZ _________________ Topband Reflector Archives - http://www.contesting.com/_topband