On Tue, 18 Jan 2005 06:08:14 GMT, "COLIN LAMB"
wrote:

Years ago, I decided to convert one of my Millen tube jobs to a solid state
one

When I got done, the 2 highest bands were off calibration.

That's because the inter-electrode capacitance of the tube is part of
the tuned circuit.

Dale H. Cook, Chief Engineer, WWWR Roanoke VA, WCQV Moneta VA, WKBA
WZZI Vinton VA, WKPA WLNI WZZU Lynchburg VA, WMNA/WMNA-FM Gretna VA,
WOWZ Appomattox VA
http://members.cox.net/dalehcook/starcity.shtml