Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Tubes / Valves All about our sweet vacuum tubes :) Threads about Musical Instrument Amps of all kinds should be in the Instruments & Amps forum

Pin 9 on 6n6P, 6H30, etc
Pin 9 on 6n6P, 6H30, etc
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 26th August 2006, 07:30 AM   #1
dsavitsk is offline dsavitsk  United States
diyAudio Member
dsavitsk's Avatar
Join Date: Jan 2005
Location: Hartford
Default 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?
  Reply With Quote
Old 26th August 2006, 08:15 AM   #2
Mikael Abdellah is offline Mikael Abdellah  Sweden
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.
  Reply With Quote
Old 26th August 2006, 02:11 PM   #3
Beelzebub is offline Beelzebub  United Kingdom
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?
  Reply With Quote
Old 27th August 2006, 06:37 AM   #4
hagtech is offline hagtech
diyAudio Member
hagtech's Avatar
Join Date: Mar 2002
Location: Hawaii
Best to tie pin 9 to ground or something. Else you allow coupling between the two plates.

  Reply With Quote


Pin 9 on 6n6P, 6H30, etcHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
do 6h30 glow at the top only big1 Tubes / Valves 1 11th June 2009 03:19 AM
6H30 Dual Triode GlidingDutchman Tubes / Valves 9 10th July 2008 10:50 PM
6H30 equivalents woodturner-fran Tubes / Valves 7 20th October 2007 08:00 PM

New To Site? Need Help?

All times are GMT. The time now is 06:29 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio