On Sun, 7 Sep 2003 14:39:58 -0400, "Hockeyguy" wrote:

Which are the best?

For really critical testing, or for parameters outside the range of a
tube tester (i.e. 6528, with a mutual conductance of 37,000 micromhos)
I now use a GR vacuum tube bridge.

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
The Star City Pages - Antique Radios & Test Equipment, Engineering, Computers: http//members.cox.net/dalehcook/starcity.shtml