Does anyone know the specs for this Chinese pentode

Captn Dave · 5th February 2012, 04:02 PM

The tube is an 8 pin Octal labeled 6*4 where the asterisk looks like an X and an I superimposed. It has a 6BD base and a T9 envelope. The only thing I find in a search for those parameters is a 1SA6GT.

DHT112A · 04:32 PM

It is a 6ZH4.

U.S. equivalent would be a 6AC7

6Zh4 | Tubes Information

Bone · 5th February 2012, 05:34 PM

This (6ZH4) is more usually written 6J4.

DHT112A · 06:03 PM

The 6J4 is a 7 pin triode unless you mean 6J4P

Captn Dave · 5th February 2012, 06:01 PM

Thanks guys.

Mikha · 5th February 2012, 06:14 PM

Diagrams:

''Èñòîê2''. Ðàäèîëàìïû - ïî÷òîé. Ïàðàìåòðû è õàðàêòåðèñòèêè 6Æ4

mace1337 · 5th February 2012, 06:29 PM

Quote:

Originally Posted by DHT112A

The 6J4 is a 7 pin triode unless you mean 6J4P

I dont know about this example but the Chinese are known to copy Russian tubes and they drop the "P". For example the Russian 6N1P is the 6N1 in China.

Captn Dave · 6th February 2012, 01:35 PM

Yes that's correct mace1337. As I look now in just the right like I can just barely make out the 6J4P on one of the envelopes. I note that when one presses the google translate button on the characteristics page Mikha posted, the Russian character I had described as an X and I superimposed translates to a ZH as DHT112A had posted. Thanks for the help.

5th February 2012, 04:26 PM	#2
DHT112A diyAudio Member Join Date: Jun 2005 Location: Tacoma , WA	It is a 6ZH4. U.S. equivalent would be a 6AC7 6Zh4 \| Tubes Information Last edited by DHT112A; 5th February 2012 at 04:32 PM.

5th February 2012, 06:00 PM	#4
DHT112A diyAudio Member Join Date: Jun 2005 Location: Tacoma , WA	The 6J4 is a 7 pin triode unless you mean 6J4P Last edited by DHT112A; 5th February 2012 at 06:03 PM.

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
chinese transformers	ubertar	Parts	3	12th August 2007 06:28 PM
A small no-fuss pentode/pentode SE amp	Tubes4e4	Tubes / Valves	13	1st January 2006 05:16 AM

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

5th February 2012, 05:34 PM	#3
Bone diyAudio Member Join Date: Jun 2004 Location: Dorset, UK	This (6ZH4) is more usually written 6J4.

5th February 2012, 06:01 PM	#5
Captn Dave diyAudio Member Join Date: Jun 2008	Thanks guys.

5th February 2012, 06:14 PM	#6
Mikha diyAudio Member Join Date: Mar 2011 Location: Moscow	Diagrams: ''Èñòîê2''. Ðàäèîëàìïû - ïî÷òîé. Ïàðàìåòðû è õàðàêòåðèñòèêè 6Æ4

6th February 2012, 01:35 PM	#8
Captn Dave diyAudio Member Join Date: Jun 2008	Yes that's correct mace1337. As I look now in just the right like I can just barely make out the 6J4P on one of the envelopes. I note that when one presses the google translate button on the characteristics page Mikha posted, the Russian character I had described as an X and I superimposed translates to a ZH as DHT112A had posted. Thanks for the help.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)