I'm glad it was of help. It's amazing the way things happen sometimes, that message from another list arrived in my inbox mere hours before it was needed here.
73 -Jim On Tue, 7 Jun 2011 14:36:38 +1200, [email protected] wrote: >Hello NU0C, >Re Message 10, Drakelist Digest, Vol. 34, Issue 4. >Thanks very much for listing that reply regarding Sharp and Remote Cutoff in >the use of Pentode Tubes. >That elegant explanation clearly showed how each tube worked, and I am now >that much wiser!! >I had looked at Lurch's graph and thought that the 12BA6 does not cut off but, >it never occurred to me that 'transconductance' was probably the reason for >its selection. >Bob. ZL2AAQ -- Ham Radio NU0C Lincoln, Nebraska, U.S.S.A. TR7/RV7/R7A/L7, TR6/RV6, T4XC/R4C/L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! "Give a man a URL, and he will learn for an hour; teach him to Google, and he will learn for a lifetime." HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/ http://incolor.inetnebr.com/jshorney http://www.nebraskaghosts.org _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist

