[Amps] Uncluttering 3CX800A7 socket wiring

Steve Thompson g8gsq at eltac.co.uk
Tue Jan 16 05:19:47 EST 2007



w2cqm at juno.com wrote:
> 
> Eimac externally  ties in pins pins 4,7, & 11 to the  3CX800A7's tube 
> grid ring. That's evident from examining the base of the tube.  
> Selecting any one of those three pins will effectively ground the 
> grid. The cathode (apparently) internally  ties into   pins 1,2,3,8,9 
> & 10. As a method to reduce undersocket  wiring clutter,   is it 
> essential to make connections to each and every socket pin to make an 
> effective connection to the cathode? Any comments would be 
> appreciated. Ron W2CQM/3 
Increased inductance in the grid lead might not make a measureable 
difference at hf, but will decrease vhf stability. Look out for the p 
word. I doubt that multiple cathode connections matter at hf.

Steve


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