Russian Tube Model Code

[Tim]

I am trying to put together a tube code name conversion table to our
site. Can any of you let me know if there is a mistake or omission,
particularly for the Russian tube code.

Many thanks, Tim

US Europe Chinese Russian
12AT7 ECC81 - -
12AU7 ECC82 - -
12AX7 ECC83 - -
6DJ8 ECC88 6N23 6H23N
6922 E88CC - -
7308 E188CC - -
8223 E288CC - -
6SN7 6SN7 6N8P 6H8C
6SL7 6SL7 6N9P 6H9C
6267 EF86 6J8 -
5687 5687 6N12P -
6AQ8 ECC85 6N1 6H1N
6AX7 PCC186 6N2 6H2N

6BM8 ECL82 - -
6GW8 ECL86 - -

6BQ5 EL84 6P14 6N14N
6CA7 EL34 - -
6L6 6L6 6P3P -
6V6 6V6 6P6P -
6550 - 6P27P -

5AR4 GZ34 - -
5V4G GZ32 - -
5Y3 - 5Z2P -
5U4G 5U4G 5Z3P -
5Z4 GZ30 5Z4P -
6X4 EZ90 - -
6X5 EZ35 - -
6CA4 EZ81 - -
6V4 EZ80 - -

Sent via Deja.com http://www.deja.com/
Before you buy.

[Victor]

First of all, a question of consistency: are you translating the
characters or keeping them the same? You seem to be doing it both ways,
so pick just one particular way. For example: 6H8C (in Russian
notation). Some people would write it as 6N8S, others would do 6H8C.

The "Pi" character indicating the miniature construction (the one at the
end of say, 6H23P), do you want it to indicated as P or n?

If you keep it both ways you create a lot of confusion. So which one is
that going to be?

My preference in order to avoid a confusion is to keep the Russian H as H,
and not translate it as N.

[Franz Hamberger]

Tim <tyy...@hkstar.com> schrieb in im Newsbeitrag:
7uhvn4$cgr$1...@nnrp1.deja.com...

> I am trying to put together a tube code name conversion table to our
> site. Can any of you let me know if there is a mistake or omission,
> particularly for the Russian tube code.
>
> Many thanks, Tim
>

Hi Tim,

there's some confusion with Russian tube type designators
due to mixing up cyrillic and latin characters.
I'm using here the "one-to-one-character" transliteration scheme
which doesn't apply to the whole alphabet, but is useful with
tube names.

First some details about the nomenclature of Russian
receiving tubes:

First number = heater or filament voltage.

Following character = tube type identication:
A = hexode, heptode etc. for mixers, frequency changers.
D = small signal diode.
E = tetrode or electron-ray tube (magic eye).
F = combined triode-pentode.
J = sharp-cutoff pentode.
K = remote-cutoff pentode.
N = twin triode.
P = power pentode, beam tetrode.
R = twin tetrode or pentode.
S = triode.
X = small signal twin diode.
Z = rectifier.

Following number is serial.

Folowing character is base identification:
no = metal octal or older 4 to 7-pin bases
B = subminiature
J = acorn tube
L = loctal
M = metal octal
N = nuvistor
P = 7 and 9-pin miniature
S = glass octal and magnoval

Sometimes there are more following characters that specify
military specs (W or V), high-reliability long-life type (E),
pulse-mode operation (I).

There could be more, that's all I remember for now.
Here some comments to your list:

>
> US Europe Chinese Russian
> 12AT7 ECC81 - -
> 12AU7 ECC82 - -
> 12AX7 ECC83 - -

> 6DJ8 ECC88 6N23 6H23N

6DJ8 = 6N23P

> 6922 E88CC - -

6922 = 6N23P-EW

> 7308 E188CC - -
> 8223 E288CC - -
> 6SN7 6SN7 6N8P 6H8C

6SN7GT = 6N8S

> 6SL7 6SL7 6N9P 6H9C

6SL7GT = 6N9S

> 6267 EF86 6J8 -

EF86 = 6J32P

> 5687 5687 6N12P -
> 6AQ8 ECC85 6N1 6H1N

6N1P, is definitely no ECC85!

> 6AX7 PCC186 6N2 6H2N

6N2P is similar to 6AX7/12AX7
but what is a PCC186?
There is a ECC186 similar to 12AU7.

>
> 6BM8 ECL82 - -

ECL82 = 6F3P

> 6GW8 ECL86 - -
>
> 6BQ5 EL84 6P14 6N14N

EL84 = 6P14P

> 6CA7 EL34 - -
> 6L6 6L6 6P3P -

6L6GA = 6P3S

> 6V6 6V6 6P6P -

6V6GT = 6P6S

> 6550 - 6P27P -
>
> 5AR4 GZ34 - -
> 5V4G GZ32 - -
> 5Y3 - 5Z2P -
> 5U4G 5U4G 5Z3P -

5U4G = 5Z3S

> 5Z4 GZ30 5Z4P -

5Z4GT? = 5Z4S

> 6X4 EZ90 - -
> 6X5 EZ35 - -
> 6CA4 EZ81 - -
> 6V4 EZ80 - -

Here some additional equivalents:
USA Europe Russia

ECC84 6N14P
ECF80 6F1P
EL500 6P36S
6AK5 EF95 6J1P
6AL5 EAA91 6X2P
6AS7G 6N5S
6B4G 6S4S
6C5GT 6S5S
6H6GT 6X6S
6J4 6S2P
6J5GT 6S2S
6J6 ECC91 6N15P
6N7GT 6N7S
12AY7 6N4P/12N4P
12J5GT 12S2S
5703 6S6B
9002 E1C 6S1P

There are lots of 6J-type having equivalents,
but don't have the information here.

HTH

Franz

--
Franz Hamberger, Berlin, Germany
franz.h...@gmx.de
European tubes data needed ? Visit my webpage:
The Electron Tubes and Valves - Charts
http://www.ginko.de/user/franz.hamberger

You can download the whole stuff
as a zip file for offline browsing:
http://user.berlin.de/~franz.hamberger/roehren.zip

[Ned Carlson]

Tim wrote:
>
> I am trying to put together a tube code name conversion table to our
> site. Can any of you let me know if there is a mistake or omission,
> particularly for the Russian tube code.

This might help:
http://www.arrakis.es/~igapop/referenc.htm

As will a copy of the Vade Mecum book.

I'd sure like to see some conversion on
Chinese numbers.

> Many thanks, Tim

>
> US Europe Chinese Russian
> 12AT7 ECC81 - -
> 12AU7 ECC82 - -
> 12AX7 ECC83 - -
> 6DJ8 ECC88 6N23 6H23N

> 6922 E88CC - -

> 7308 E188CC - -
> 8223 E288CC - -
> 6SN7 6SN7 6N8P 6H8C

> 6SL7 6SL7 6N9P 6H9C
> 6267 EF86 6J8 -

> 5687 5687 6N12P -
> 6AQ8 ECC85 6N1 6H1N

> 6AX7 PCC186 6N2 6H2N
>
> 6BM8 ECL82 - -

> 6GW8 ECL86 - -
>
> 6BQ5 EL84 6P14 6N14N

> 6CA7 EL34 - -
> 6L6 6L6 6P3P -

> 6V6 6V6 6P6P -

> 6550 - 6P27P -
>
> 5AR4 GZ34 - -
> 5V4G GZ32 - -
> 5Y3 - 5Z2P -
> 5U4G 5U4G 5Z3P -

> 5Z4 GZ30 5Z4P -

> 6X4 EZ90 - -
> 6X5 EZ35 - -
> 6CA4 EZ81 - -
> 6V4 EZ80 - -
>

> Sent via Deja.com http://www.deja.com/
> Before you buy.

I agree with Victor, you should either
transliterate all the Cyrillic characters
to Latin, or don't do it at all. Since
most Russian computers (as the Russians like
to say) are backwards-compatible to Latin
characters, but most computers in English
speaking countries don't have Cyrillic fonts, doing it
completely as Latin sounds like the most logical way
to do it, followed or preceded by a graphic
showing the Cyrillic counterpart letters.

Doing it completely as Cyrillic is going to
be a big problem, unless the Cyrillic characters
are represented as graphics, most people will see
gibberish.

Without enumerating them point by pint, there's
a lot of errors in your list, the URL I pointed to
will resolve some of them, I guarantee you that
someone in HK has a Vade Mecum that will help you
a lot. BTW, 6AX7 isn't exactly a sub for 6N2Pi
as 6AX7 has a filament center tap, the other doesn't.

I get a LOT of folks emailing me who are confused
by Cyrillic characters on Russian tubes, and even
worse, bad translations of Cyrillic letters which get
tubes like Russian 6L6 confused with Russian 2C51.

--
Ned Carlson Triode Electronics "where da tubes are!"
2225 W Roscoe Chicago, IL, 60618 USA
ph 773-871-7459 fax 773-871-7938
12:30 to 8 PM CT, (1830-0200 UTC) 12:30-5 Sat, Closed Wed & Sun
Magnequest Transformers stocked for Dynaco & Sunn!
Order online at:
http://www.triodeel.com/cgi-bin/miva?Merchant/merchant.mv+

[iga]

Take a look at my Reference page.
Regards,
Igor.
http://www.arrakis.es/~igapop

Tim escribió en mensaje <7uhvn4$cgr$1...@nnrp1.deja.com>...

>I am trying to put together a tube code name conversion table to our
>site. Can any of you let me know if there is a mistake or omission,
>particularly for the Russian tube code.
>

[Tim]

I would like to thanks all those helpful responses to my post. I am
still very confused about the relationship between cyrillic and latin
character mapping. But I find out that there is strong resemblance
between the Russian and Chinese coding scheme, which is expected since
the tube manufacturing technology in China originated from the old USSR.

I will not change the reference for the Chinese coding scheme as I got
that directly from a tube journal from China.

And the page is completed as follow:
http://homestead.deja.com/hktubeaudio/files/tubecode.html

Thanks again for all your help!

Tim