Sorry guys and girls, I know I bore you all with my newb questions...
After having the powertube worries recently, I decided to look up and buy replacement tubes. The amp was listed as having 6F2 (ECF82) preamp tubes, but the print on the tubes does not show either of those designations, but is instead printed with 6N1.
All the sites I visit list the 6N1 and 6F2 as different tubes and never group them together as cross-usable...
Are they indeed exchangeable?
After having the powertube worries recently, I decided to look up and buy replacement tubes. The amp was listed as having 6F2 (ECF82) preamp tubes, but the print on the tubes does not show either of those designations, but is instead printed with 6N1.
All the sites I visit list the 6N1 and 6F2 as different tubes and never group them together as cross-usable...
Are they indeed exchangeable?
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
So I go with the tube type in the amp at the moment, not the one listed?
I've messaged the seller of the amp to try and work out what's what.
I've messaged the seller of the amp to try and work out what's what.
Colt45 said:
I don't remember 6F2P tubes, I never saw them, never heard of them. I remember 6F1P, 6F3P, 6F4P, 6F5P.
Where they were used in?
So do I go 6N1 or 6F2? What will happen if I use the wrong one?
I'll take a pick of the actual tube in question.
I'll take a pick of the actual tube in question.
I don't really understand what the problem is? If the original one works, use the same type.
6F2 is not the 6F2P, as far as I know, there isno 6F2P. The 6F2 in the pic is chinese.
6F2 is not the 6F2P, as far as I know, there isno 6F2P. The 6F2 in the pic is chinese.
ilimzn said:
I think wavebourn's reference to 6F2P was regarding the pics in my 1st post with pics off the audiotriodes website.
In my pic, it shows the tube with 6N1-J printed on it. So I should go with what is working in the amp and not what was listed in the literature for the amp, which is 6F2(ECF82).
fauxpas said:
ECF82 = 6BL8 = 6F1P
So if Chinese 6F2 is ECF82 it means it is an equivalent of 6F1P (triode-pentode), where Chinese 6N1 is equivalent of 6N1P (double triode)
Did we answer your question?
6f2 looks very similar to ECF82 ,it has the same "window" in the pentode shield . It's a triode-pentode combination , impossible to replace with 6n1-j ( double triode ) without a complete redesign of the circuit . So the schematic ,literature you have is not for your amplifier 
OK, the seller of the amp states they did change the preamp tube recently and they forgot to change the tube info. The preamp tubes are indeed 6N1-J.
I am replacing all the tubes and now I need to know if a 6N1-P will replace my 6N1-J.
Svetlana have these 6N1-P tubes which is kind of what I'm looking at.
I am replacing all the tubes and now I need to know if a 6N1-P will replace my 6N1-J.
Svetlana have these 6N1-P tubes which is kind of what I'm looking at.
Please please please... I kind of need confirmation the 6N1-P will be ok replacing the 6N1-J.
An ebay seller has 6N1-P listed as being the same as ECC88. Is this true?
An ebay seller has 6N1-P listed as being the same as ECC88. Is this true?
According to my Russian tubebook, the 6N1P has some similarities to 6N8S (6SN7).
Also the 6N1P may replace 12AU7.
ECC88 has a direct replacement in 6N23P.
Short on Russian nomination:
First figure in code is heatervoltage
Second figure is configuration:
С (latin S) = single triode
Н (latin N) = dual triode
Э (latin E or EE) = beam tetrode
П (latin P) = power pentode
Ф (latin F) = triode-pentode
Third position is a position marker (to separate like tubes from each other)
Fourth position indicates tube of housing
С (latin S) = big or BIG glass tube with octal or other special socket
П (latin P) = small glass tube in 7- or 9-pole socket (noval)
Л (latin L) = Loctal socket
Fifth position is a quality marker
В (latin V) = increased mechanical quality
Е (latin E) = prolonged lifetime
A 6N1P-EV means a 6.3V dual triode (first in a long row of dual triodes) housed in a glasstube with noval socket. It has a higher degree of mecanical stability and is a long-life tube.
People tend to mix Russian and Latin letters making up odd combinations of tubes that wouldn't exist.
Also the 6N1P may replace 12AU7.
ECC88 has a direct replacement in 6N23P.
Short on Russian nomination:
First figure in code is heatervoltage
Second figure is configuration:
С (latin S) = single triode
Н (latin N) = dual triode
Э (latin E or EE) = beam tetrode
П (latin P) = power pentode
Ф (latin F) = triode-pentode
Third position is a position marker (to separate like tubes from each other)
Fourth position indicates tube of housing
С (latin S) = big or BIG glass tube with octal or other special socket
П (latin P) = small glass tube in 7- or 9-pole socket (noval)
Л (latin L) = Loctal socket
Fifth position is a quality marker
В (latin V) = increased mechanical quality
Е (latin E) = prolonged lifetime
A 6N1P-EV means a 6.3V dual triode (first in a long row of dual triodes) housed in a glasstube with noval socket. It has a higher degree of mecanical stability and is a long-life tube.
People tend to mix Russian and Latin letters making up odd combinations of tubes that wouldn't exist.
hello topic starter, soundbrigade and others
thanks for the suffixes!!
The 6n1p IS used widely as replacement for ecc88.
mutual conductance is about half and internal resistance somewhat higher. Mu is the same. Pa=2,2W instead of 1,8W for ecc88
Your input sensitivity will be higher.
nevertheless it functions quite well in the place of ecc88, if you don't like 'em (matter of taste) just trow in the 6n23p which indeed is the 'real' ecc88.
check datasheets (frank)
about the 6n1-J i've not found a datasheet of that tube yet, but i guess it's just a 'strange' russian suffix for something.
I did found several chinese sites which use the tube
http://yunwt.u111.net/2wenzai/imag/16_1.jpg (this site had several schematics listed using 6n1-j, including this one)
The values for resistors in this schematic seem right in the ballpark for 6n1p
Check the tubes (6n1p-6n1j) against eachother if they look the same in construction give them a try, keep a close look at them and listen.
thanks for the suffixes!!
The 6n1p IS used widely as replacement for ecc88.
mutual conductance is about half and internal resistance somewhat higher. Mu is the same. Pa=2,2W instead of 1,8W for ecc88
Your input sensitivity will be higher.
nevertheless it functions quite well in the place of ecc88, if you don't like 'em (matter of taste) just trow in the 6n23p which indeed is the 'real' ecc88.
check datasheets (frank)
about the 6n1-J i've not found a datasheet of that tube yet, but i guess it's just a 'strange' russian suffix for something.
I did found several chinese sites which use the tube
http://yunwt.u111.net/2wenzai/imag/16_1.jpg (this site had several schematics listed using 6n1-j, including this one)
The values for resistors in this schematic seem right in the ballpark for 6n1p
Check the tubes (6n1p-6n1j) against eachother if they look the same in construction give them a try, keep a close look at them and listen.
Concerning the J: Rememeber that the tube is a 6N1P . A 6N1 doesn't exist, or it is not marked/numbered according to Russian standards. (edit)
There is a suffix И (Latin I) that says that the tube is selected to work as an impulse tube (digital??).
There is a suffix И (Latin I) that says that the tube is selected to work as an impulse tube (digital??).
soundbrigade said:
kathodyne said:
OK, so I'm guessing I can use 6N1*, 6N23P, ECC88 and 12AU7 tubes without making my amp blowup... That right?
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