Biggest noval dual triode?

leadbelly · 5th December 2007, 07:13 PM

What's the biggest 9 pin pin dual triode? This one is for a hefty cathode follower, and I'd like it to be 9 pin and dual for cosmetics.

dsavitsk · 5th December 2007, 07:42 PM

Biggest as in physical size, or Gm, or mu, or power handling ...

I don't know if it is biggest, but the 6H30 seems like a reasonable start.

KaDe · 5th December 2007, 07:43 PM

6463 : Pav = 4,4 Watt ( 7,7 Watt max. in all)

7N7 · 5th December 2007, 07:50 PM

6900 is probably not a bad option, but being Bendix, a second mortgage is usually necessary.

7N7

HollowState · 5th December 2007, 09:13 PM

My recommendation would be a 12BH7A. What a little brut.

Victor

tubelab.com · 5th December 2007, 09:47 PM

For a cathode follower I would look at the 7044 or the E182CC/7119. They both have high cathode current ratings, and even higher peak current ratings. 4.5 watts plate dissipation per triode, 8 watts total. Both are very linear despite their original use as "computer tubes". The 7044 was used by Audio Note in their Ankoru design, and the 7119 has been diy'ed many times. I have used both succesfully. Beware the non standard pinout!

leadbelly · 5th December 2007, 10:04 PM

Quote:

Originally posted by tubelab.com
For a cathode follower I would look at the 7044

Bing bing bing, we have a winner! Big power and has not shot up in price yet (I better buy some fast!)

Zen Mod · 5th December 2007, 10:41 PM

I hate to write this in public.............

6N6P - consider that as Cyrilic

Geek · 6th December 2007, 10:20 AM

Quote:

Originally posted by Zen Mod
6N6P - consider that as Cyrilic

Da! It's a good one. 4.8W/section and I'm toasting it at 8W total in a 1 watt PP guitar amp. Can do nearly 2W class-A with a proper PI

KSTR · 6th December 2007, 10:38 AM

ECC99 from JJ might also be suitable and it is a very linear tube.

- Klaus

5th December 2007, 07:13 PM	#1
leadbelly diyAudio Member Join Date: Dec 2002 Location: Calgary, Alberta	Biggest noval dual triode? What's the biggest 9 pin pin dual triode? This one is for a hefty cathode follower, and I'd like it to be 9 pin and dual for cosmetics. __________________ Aerodynamics are for people who can't build engines. Enzo Ferrari

5th December 2007, 07:42 PM	#2
dsavitsk diyAudio Member Join Date: Jan 2005 Location: Chicago	Biggest as in physical size, or Gm, or mu, or power handling ... I don't know if it is biggest, but the 6H30 seems like a reasonable start. __________________ http://www.ecpaudio.com :: http://diy.ecpaudio.com

5th December 2007, 07:50 PM	#4
7N7 diyAudio Member Join Date: Jan 2003 Location: England	6900 is probably not a bad option, but being Bendix, a second mortgage is usually necessary. 7N7 __________________ Plug them in and light them up

5th December 2007, 09:13 PM	#5
HollowState diyAudio Member Join Date: Aug 2006 Location: Taxland, New Jersey	My recommendation would be a 12BH7A. What a little brut. Victor __________________ "The supercomputer is technologically impossible. It would take all of the water that flows over Niagara Falls to cool the heat generated by the number of vacuum tubes required." ~ Professor of Electrical Engineering, New York University

5th December 2007, 09:47 PM	#6
tubelab.com diyAudio Member Join Date: Jul 2005 Location: South Florida	For a cathode follower I would look at the 7044 or the E182CC/7119. They both have high cathode current ratings, and even higher peak current ratings. 4.5 watts plate dissipation per triode, 8 watts total. Both are very linear despite their original use as "computer tubes". The 7044 was used by Audio Note in their Ankoru design, and the 7119 has been diy'ed many times. I have used both succesfully. Beware the non standard pinout! __________________ Too much power is almost enough! Turn it up till it explodes - then back up just a little.


	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

5th December 2007, 10:41 PM	#8
Zen Mod diyAudio Member Join Date: Jan 2003 Location: ancient Batsch , behind Iron Curtain	I hate to write this in public............. 6N6P - consider that as Cyrilic __________________ my Papa is smarter than your Nelson ! tnx to clean thread ; Cook Book ; PSM LS Cook Book ; Baby Diyaudio FORUM ; Mighty ZM's Bloggg;I'm dumb

6th December 2007, 10:38 AM	#10
KSTR diyAudio Member Join Date: Jul 2007 Location: Central Berlin, Germany	ECC99 from JJ might also be suitable and it is a very linear tube. - Klaus

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
using only 1/2 of a dual triode	gabriel611	Tubes / Valves	18	2nd July 2010 06:43 AM
Best/favorite CF NOS noval twin triode?	leadbelly	Tubes / Valves	34	19th April 2008 04:37 PM
Favorite noval hi gain dual triode?	leadbelly	Tubes / Valves	0	11th October 2007 10:28 PM
Biggest dual triode output tube?	leadbelly	Tubes / Valves	3	30th July 2007 08:57 PM
Any Twin Power triode Noval type?	john	Tubes / Valves	8	6th April 2005 02:09 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read