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Old 13th January 2005, 10:47 AM   #11
X.G. is offline X.G.  China
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Quote:
Originally posted by fdegrove
Hi,

6N1-P a variable mu twin triode?

I thought the 6N24-P was such a tube, not the 6N1-P.
Cheers,
oh.......dear Frank is on me!

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Old 13th January 2005, 04:27 PM   #12
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Who's the Ministry of Misinfomation here?

6N2P = 12AX7A
6N1P = 6922 (not 6DJ8!)
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Old 13th January 2005, 04:50 PM   #13
nanana is offline nanana  Sweden
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hey geek,
you are misinformed... 6N1P has about 1/3 the transconductance and really different plate curves from a 6922... the 6N2 has the same characteristics as a 12AX7 but it is 6.3v heater only and slightly different pinout.
jc
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Old 13th January 2005, 05:12 PM   #14
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Hi,

Good grief, people.....

6N1-P

250V/5.5mA bias
mu = 35x
gm = 4500A/V
rp = 7800


6N2-P

250V/1.8mA bias
mu = 97x
gm = 2250A/V
rp = 43000


Both 6.3V heaters only.

So no the 6N1-P is not a 6DJ8 neither is it a 6922.
How could it be?

The 6N2-P is similar to a 6AX7 but not quite so don't go popping those in a phonostage or you'll muck up the RIAA correction to say the least.

The 6N1-P has been sold for decades as a 6DJ8, especially in the USA during the cold war.
That doesn't make it a 6DJ8 but don't get me started........

Business construction :

Electronintorg USSR governmental export agency exports to Europe.
Europe rebrands the goodies as if they were made locally and voila, import embargo from USSR to the US circumvented....

I'm innocent, I swear.

Hope this settles it,

Cheers,

P.S. X.G. was on the right track from the start.........
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Old 13th January 2005, 05:30 PM   #15
petrkp is offline petrkp  Czech Republic
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Hi, I have plenty of them. How many pieces do you need? Both 6N1P and 6N2P.
Please email to petrk@czechaudio.com.
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Old 13th January 2005, 05:50 PM   #16
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Default small correction

I was mistaken in my earlier post about the inside triode section of a 6BK7 closely resembling that of a 417A. It does not. I hope this correction calms any discontinuity I created in the space-time continuum.
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Old 13th January 2005, 07:57 PM   #17
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I should have specified the 6N1P can sub 6DJ8, but not the other way around, because of the maximum Vp difference.
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Old 13th January 2005, 08:12 PM   #18
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Hi,

Quote:
I should have specified the 6N1P can sub 6DJ8, but not the other way around, because of the maximum Vp difference.
You can just as well throw that Svetlana datasheet in the dustbin, it's utterly worthless.

Also keep in mind that the heater of the 6N1-P draws 600mA.
Vp max is 300V BTW.

Cheers,


P.S. BTW Geek, isn't that a 6N1-P in your avatar?
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Old 13th January 2005, 10:22 PM   #19
X.G. is offline X.G.  China
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maybe my Chinese datasheet of 6N1 can make something clear

the 2nd page
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Old 13th January 2005, 10:23 PM   #20
X.G. is offline X.G.  China
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the 3rd page
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