Pin 9 on 6n6P, 6H30, etc

dsavitsk · 26th August 2006, 07:30 AM

What is the best thing to do with pin 9 on these tubes? Should it be grounded, left floating?

Mikael Abdellah · 26th August 2006, 08:15 AM

I usually tie it to ground. Escpecially if Im using both sides of the tube. It can never hurt to shield something.

Beelzebub · 26th August 2006, 02:11 PM

John Broskie recommends a capacitor to ground in his Aikido circuit, although this has as much to do with facilitating valve choice on his circuit board as anything (a capacitor will provide an AC path to ground). Why not try both and see what the results are?
Jim

hagtech · 27th August 2006, 06:37 AM

Best to tie pin 9 to ground or something. Else you allow coupling between the two plates.

jh

26th August 2006, 07:30 AM	#1
dsavitsk diyAudio Member Join Date: Jan 2005 Location: Chicago	Pin 9 on 6n6P, 6H30, etc What is the best thing to do with pin 9 on these tubes? Should it be grounded, left floating?

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26th August 2006, 08:15 AM	#2
Mikael Abdellah diyAudio Member Join Date: Jan 2003 Location: Sweden	I usually tie it to ground. Escpecially if Im using both sides of the tube. It can never hurt to shield something.

26th August 2006, 02:11 PM	#3
Beelzebub diyAudio Member Join Date: Feb 2004 Location: UK	John Broskie recommends a capacitor to ground in his Aikido circuit, although this has as much to do with facilitating valve choice on his circuit board as anything (a capacitor will provide an AC path to ground). Why not try both and see what the results are? Jim

27th August 2006, 06:37 AM	#4
hagtech diyAudio Member Join Date: Mar 2002 Location: Hawaii	Best to tie pin 9 to ground or something. Else you allow coupling between the two plates. jh

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