6j49p info

[mr ed]

Does anyone have a link to a data sheet translated to English for the 6j49p tube?
I search for some time today and did a search here also.
Any tips on operating points in triode mode as a driver would be great.

Thanks
Ed

 

[VT-52]

I have a trace for triode curves on my site here:

eTracer Russia | Trying hard not to electrocute myself... (6Z49P)

Datasheet can be found on google. http://www.mif.pg.gda.pl/homepages/frank/sheets/112/6/6Z49PDR.pdf

 

[mr ed]

Thank ypu.
I guess becuase i did not use the Z in there it did not sesrch the same.

Chhers

 

[VT-52]

Haha, yep, it goes by 6J49P, 6Z49P and the most proper 6Zh49P 🙂

 

[Charm]

http://www.bartola.co.uk/valves/?s=6Z49P

 

[cv1040]

Ed,

If you have not already, don't buy anything other than the 6Ж49П-ДPY / 6J49P-DRU version, they tend to measure ok. The ДP/DR and the regular Д/D versions might give you 1 good one in 5 or even 10.

Take your pick on operating point, Jim's trace is of a good valve. With its huge µ it's a very versatile valve.

 

[mr ed]

Ed,

If you have not already, don't buy anything other than the 6Ж49П-ДPY / 6J49P-DRU version, they tend to measure ok. The ДP/DR and the regular Д/D versions might give you 1 good one in 5 or even 10.

Take your pick on operating point, Jim's trace is of a good valve. With its huge µ it's a very versatile valve.

Thank you.
Trying it as a driver for pp2a3 amp.
Using a 6c45p right now.

 

[Wavebourn]

It is an improved version of 6J9P
It was called in 1960'Th 6J9P-E
Then some tighter technology was used to make "very long living" 6J9P for military, and it was renamed to 6J49P-DR.

 

[VT-52]

6J9P and 6J11P have terrible consistency. I have 30+ and have problems making decent pairs, the spread is so large. I only have eight of the 6Z49P and even those have a large spread in gm/µ but looks a bit better at least.

6Z9P(-E) 6Z9P Test results | VT52.com
6Z11P-E 6Z11P-E Test results | VT52.com
6Z49P-DRU 6Z49P-DRU Test results | VT52.com


The DRU is the same as the DR except for gold pins and being pre-burned and carrying the "audiophile" price tag because of the gold pins 🙂

 

[VT-52]

BTW, if you can do with a little less µ, the 6E6P-E/-DR might be a good option as it has similar rp and current than the 6C45P-E you already have. Also one of the lowest noise tubes and super linear in triode mode.