6n5p sound for me little bit better.
6n13s is civil version of 6AS7G, 6n5s military one (as I know).
6n3p is 6CC42 (predecessor of ECC85/ECC88).
And dont forget, 6n1p IS NOT ECC88.
6n13s is civil version of 6AS7G, 6n5s military one (as I know).
6n3p is 6CC42 (predecessor of ECC85/ECC88).
And dont forget, 6n1p IS NOT ECC88.
My old GE TV had 2 6BQ7A in the channel selector, they were designed for VHF/UHF, I thought the 6N1P was designed for audio.
6n1p is not even close to 6BQ7 , it is like the triodes inside old ECC40 , including high filament current 600mA
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Maybe the 6N5P is a better RF version but the curves look close. There is no true western equivalent to 6N1P as far as I can tell..
I notice that the 6N2P has somewhat higher gm than the 12AX7. Are there any other advantages to the Russian tube (e.g. lower noise or microphonics, better low voltage operation etc.)?
I couldn't say a Russian tube close to 12AU7 (is this the one more alike ECC81 OR 82?)
But I am lead to believe that the 6N5P is variable mu, and maybe not the best for audio.
I can't speak from experience though, my 6N5P are still packed up and unused. Too many tubes not enough time, it seems.
It's a little like asking which Subminiature tube is close to 12AX7.
I could say 6N17B, but I could also say 6N21B. In reality they are all their own and not all that similar.
Or asking which Soviet tube is like a 6021 Subminiature. I could say 6N16B (they have quite a following), but I haven't compared.
6021 does not live up to its reputation, that's all I can say.
But I am lead to believe that the 6N5P is variable mu, and maybe not the best for audio.
I can't speak from experience though, my 6N5P are still packed up and unused. Too many tubes not enough time, it seems.
It's a little like asking which Subminiature tube is close to 12AX7.
I could say 6N17B, but I could also say 6N21B. In reality they are all their own and not all that similar.
Or asking which Soviet tube is like a 6021 Subminiature. I could say 6N16B (they have quite a following), but I haven't compared.
6021 does not live up to its reputation, that's all I can say.
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Different interelectrode capacitances, for sure.
12AX7
Cga = 1.7pF
Cgk = 1.6pF
6N2P
Cga = 0.7pF
Cgk = 2.25pF
Ip at Vp = 180V, Vg = -1.5V
12AX7 - 0.85mA
6N2P - 0.95mA
Not that different...
6N24P is like 6N23P but for cascode? The curves are almost the same - the pinout is different. I use 6N24P as a buffer usually.
Stumbled upon your post from last year whilst researching info on 12AU7. What you were asking about the vacuum tube-based equipment used by the then USSR is very much true. At that time I was SIGINT operator in the army of a former Warsaw Pact country (Bulgaria) spying on the West (lol). Although there was already very good quality solid state-based Soviet military equipment in use we were instructed to revert to the tube-based equipment in an event of adversity. Thank God it never got to that. Some years later, as a club radio ham operator in civil life (LZ1KRA) the military often donated obsolete tube gear of all kinds. I will never forget the very high quality this stuff was, the parts were manna from heaven for all sorts of ham gear. The good/bad old days (depending on which side of the fence you were) 🙂