6N6P-I life-time

inertial · 10th December 2008, 04:12 PM

Hi ,

based on this datasheet : http://www.tubes.ru/techinfo/HiFiAudio/6n6p.html

It seems the lifetime is ONLY 500 hours

Is it right? Or maybe can be 5000 hours ?
I am a bit worried because I have 10 of these little triodes

Thanks for your help.

Cheers,
Paolo

analog_sa · 10th December 2008, 04:27 PM

Never seen the ones with an "I". So what, after a 200hr compulsory break-in you still have another 300 to enjoy

robot · 10th December 2008, 04:37 PM

http://www.ptsoundlab.com/tubes/prea...j/6N6Pdata.pdf

inertial · 10th December 2008, 05:10 PM

Yup, time 2 month my valves is end!

this is the valves I have purchased, http://cgi.ebay.com/RUSS-TUBES-6N6P-...ash=item260327

I have fear it is the "I" version......
Very strange, come on , is it possible 500 hours only? Worse of a 5842!
Now I have understood why they was so cheap

Cheers,
Paolo

robot · 10th December 2008, 05:58 PM

Actually letter "I" at the end of markings of Russian tubes means "designed for impulse operation ", but I would not worry since I never heard that they lasted only 500 hours, maybe if they are driven hard. Anyway they re cheap

, eight tubes x 500 hours

Letter "E" on same place means "longlife, so next time when you buy tubes in Russia, find those...

Colt45 · 10th December 2008, 06:50 PM

guaranteed 500h, at full ratings, in a tank or airplane

I'm sure they'll have long life relaxing in an amp.

inertial · 10th December 2008, 07:12 PM

He he it is fun , no?

The thing have confused me is those cyrillic characters.......
Robot, please what is "E" in cyrillic ? ( and what is "I")

colt you are right, probably If I dissipate half power maybe I can hope
in 1000 hours ! A real bargain !

Cheers,
Paolo

Colt45 · 10th December 2008, 07:25 PM

I'd guess more like 5-10k, but ok.

inertial · 10th December 2008, 07:43 PM

Colt,

Really?
This is encouraging for me. I hope you are right!
Anyway I'll discover it very soon. I'm quasi-ready to start with PCB
and my experiment for a driver stage with 6N6.
It will dissipate about 2,2-2,4 W each section. We will see

thanks for suggestions guys!

Cheers,
Paolo

robot · 10th December 2008, 08:56 PM

Cyrillic letter E is same like Latin, but letter I looks like this "и", or N mirrored. Actually 6n6p is really a nice tube, especially good driver of output tubes, an Eastern counterpart of another great tube, 5687. Only problem is that they have different pinouts, so we cannot swap them witihout soldering iron

I also bought some ordinary 6n6p recently from Ukraine, just as a strategic reserve

...

10th December 2008, 04:12 PM	#1
inertial diyAudio Member Join Date: Aug 2004 Location: Italy	6N6P-I life-time Hi , based on this datasheet : http://www.tubes.ru/techinfo/HiFiAudio/6n6p.html It seems the lifetime is ONLY 500 hours Is it right? Or maybe can be 5000 hours ? I am a bit worried because I have 10 of these little triodes Thanks for your help. Cheers, Paolo

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10th December 2008, 04:27 PM	#2
analog_sa diyAudio Member Join Date: Aug 2002 Location: Cascais	Never seen the ones with an "I". So what, after a 200hr compulsory break-in you still have another 300 to enjoy

10th December 2008, 04:37 PM	#3
robot diyAudio Member Join Date: Oct 2005 Location: near Split	http://www.ptsoundlab.com/tubes/prea...j/6N6Pdata.pdf

10th December 2008, 05:10 PM	#4
inertial diyAudio Member Join Date: Aug 2004 Location: Italy	Yup, time 2 month my valves is end! this is the valves I have purchased, http://cgi.ebay.com/RUSS-TUBES-6N6P-...ash=item260327 I have fear it is the "I" version...... Very strange, come on , is it possible 500 hours only? Worse of a 5842! Now I have understood why they was so cheap Cheers, Paolo

10th December 2008, 05:58 PM	#5
robot diyAudio Member Join Date: Oct 2005 Location: near Split	Actually letter "I" at the end of markings of Russian tubes means "designed for impulse operation ", but I would not worry since I never heard that they lasted only 500 hours, maybe if they are driven hard. Anyway they re cheap , eight tubes x 500 hours Letter "E" on same place means "longlife, so next time when you buy tubes in Russia, find those...

10th December 2008, 06:50 PM	#6
Colt45 diyAudio Member Join Date: Feb 2002 Location: Canada	guaranteed 500h, at full ratings, in a tank or airplane I'm sure they'll have long life relaxing in an amp.

10th December 2008, 07:12 PM	#7
inertial diyAudio Member Join Date: Aug 2004 Location: Italy	He he it is fun , no? The thing have confused me is those cyrillic characters....... Robot, please what is "E" in cyrillic ? ( and what is "I") colt you are right, probably If I dissipate half power maybe I can hope in 1000 hours ! A real bargain ! Cheers, Paolo

10th December 2008, 07:25 PM	#8
Colt45 diyAudio Member Join Date: Feb 2002 Location: Canada	I'd guess more like 5-10k, but ok.

10th December 2008, 07:43 PM	#9
inertial diyAudio Member Join Date: Aug 2004 Location: Italy	Colt, Really? This is encouraging for me. I hope you are right! Anyway I'll discover it very soon. I'm quasi-ready to start with PCB and my experiment for a driver stage with 6N6. It will dissipate about 2,2-2,4 W each section. We will see thanks for suggestions guys! Cheers, Paolo

10th December 2008, 08:56 PM	#10
robot diyAudio Member Join Date: Oct 2005 Location: near Split	Cyrillic letter E is same like Latin, but letter I looks like this "и", or N mirrored. Actually 6n6p is really a nice tube, especially good driver of output tubes, an Eastern counterpart of another great tube, 5687. Only problem is that they have different pinouts, so we cannot swap them witihout soldering iron I also bought some ordinary 6n6p recently from Ukraine, just as a strategic reserve ...