QUICK FIND
CURRENCY
Use keywords to find the product you are looking for... ADVANCED SEARCH
YOUR CART IS EMPTY
Categories
Manufacturers
Bestsellers
K42Y-2 160V 0.1uF PIO capacitor - $0.25/ea In Stock

K40Y-9 400V 0.015uF PIO guitar tone capacitor - $1.20/ea In Stock

IN-3 nixie tube - $0.30/ea In Stock

K40Y-9 400V 0.022uF 10% tol. PIO guitar tone capacitor - $5.00/ea In Stock

6P14P / 7189 / 6BQ5 / EL84 tube - $10.00/ea In Stock

IN-13 long nixie bargraph tube - $5.00/ea In Stock

6N1P / 6DJ8 / ECC88 / 6922 Voskhod tube - $1.50/ea In Stock
Site news
07 Jul 2017 - Work schedule AUG 2017
06 Jun 2017 - Accept credit/debit cards
03 May 2017 - Moving site to HTTPS
24 Dec 2016 - Marry Christmas & NY 2017!
16 Dec 2016 - Server Upgrade
Articles
The US tubes and Soviet analogues
The Russian/Soviet tubes
Types of some Russian capacitors
Code chart for TESLA tubes
Shipping Info Delivery Stats Payment Info How to Order Privacy Notice Returns Policy Contact Us
» The Russian/Soviet tubes » Russian/Soviet tube designations
Russian/Soviet tube designations

Receiver tubes

In the 1950s a 5-element system (GOST 5461-59, later 13393-76) was adopted in the (then) Soviet Union for designating receiver vacuum tubes.

The first element - number, means a filament voltage in volt (approximately).

The second element - letter, designating type of the device:

D - diode, including dempfers;
H - double diode;
C - low-power kenotron;
S - triode;
N - double triode;
E - tetrode;
P - output pentode and beam tetrode;
J - high-frequency pentode with short characteristic, including with double management;
K - high-frequency pentode with long characteristic;
R - double tetrode and double pentode;
G - diode-triode;
B - diode-pentode;
F - triode-pentode;
I - triode-geksode, triode-geptode, triode-oktode;
A - frequency-converting tubes and tubes with two operating grids (except for pentodes with double management);
V - tubes with secondary issue;
L - tubes with focused beam;
E - electron-beam indicators of adjustment.

For electronic mehatrons the second element of a designation is made of three letters: the first M - mehatron; the second letter corresponds to the basic purpose of the device (in some designations mehatrons, developed earlier, this letter is absent); the third letter designates type of the device according to the list resulted above.

The third element - number, corresponding a serial number of the given type of a tubes.

The fourth element - letter, describing constructive desing of a tubes:

P - in a glass environment, tiny (finger-type), diameter 19 and 22.5 mm;
A - in a glass environment, supertiny, diameter from 5 up to 8 mm;
B - in a glass environment, supertiny, diameter from above 8 up to 10.2 mm;
G - in a glass environment, supertiny, diameter over 10.2 mm;
S - in a glass environment, with a socle or without a socle, diameter more than 22.5 mm;
N - in a ceramic-metal environment, tiny and supertiny;
K - in a ceramic environment;
D - in a metal-glass environment, with disks.

Tubes in metal to an environment of the fourth element of a designation no have.

Additional element. To a standard designation of a tube are sometimes added (after a hyphen) the letters describing special properties of tubes, for example:

V - increased reliability and mechanical ruggedness (such as low susceptibility to noise and microphonics);
R - even better than V, extra high reliability (10000 hours and more);
E - extended service life (5000 hours and more);
D - exceptionally long service life;
I - optimised for "pulsed" (i.e. switching) mode of operation.

Example for 6P14P-ER tube:

6 - filament voltage, 6,3V;
P - output pentode;
14 - serial number of type of a tube;
P - envelope: miniature, glass;
ER - raised durability, operation time > 10000h

Transmitter tubes

There is another designation system for high-power tubes such as transmitter ones.

The first element (from left to right) is always G.

The second element (with some notable exceptions such as the G-807) is:

K – shortwave (≤ 25 MHz) tube;
U – ultra-shortwave (25–600 MHz) tube;
S – centimetric-wavelength (> 600 MHz) tube;
M – modulator tube;
I – impulse tube.

The third element consists of a dash ("-") followed by the design serial number. Letter can be used here in some special cases (GMI-6 – impulse modulator); if the tube has to be force-cooled, there might follow a letter A for water-cooled or B for air-cooled.

Popular transmitter tubes include the GU-29, GU-50, GM-70 and G-807 (the Russian 807 analogue).

Copyright 2007-   Tubes-Store Inc. All rights reserved.