Have you tested the tubes and which Ameco preamp? Also, make sure all the pins of the tube are straight as they go into the socket. They're not all that rigid, and if one is bent as you push it into the socket, you may not be able to feel the difference. Given proper filament and plate voltage, these things can last a long time. Most of the nuvistors in my Clegg stuff are still original and the rigs still perform fine. Testing the preamp with a generator and a scope should not be a big problem.
Pete, wa2cwa On Wed, 29 Nov 2006 11:12:01 -0600 "A.R.S. - W5AMI" <[EMAIL PROTECTED]> writes: > Hey Todd, > > Yeah, the 6CW4's are supposed to be a direct replacement. Seems > the > diff is that the 6DS4 is sharp cutoff, or maybe the other way > around. > I suspect they would work fine for the Ameco preamp. I'm in no > hurry, > just getting all the stuff out of boxes where they have been stored > for 5+ years and going through things. The preamp is dead now, and > the only thing I can figure is one or both the tubes are shot. > There's not that much to this thing ;) > > Thanks! > Brian ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]
