6N2P
Encyclopedia
The 6N2P, also sometimes spelled in English "6H2Pi" is a miniature 9-pin dual triode
vacuum tube
manufactured in USSR, Russia
and China
with characteristics similar to the RCA
12AX7
. The most significant difference between the two is that 6N2P has its two filament elements connected in parallel, unlike the series filament connection of the 12AX7, and it is thus only possible to operate it from a 6.3 volt, 300 mA filament supply (whereas a 12AX7
may be operated from either 6.3 or 12.6 volts.) The 6N2P also has slightly lower gain than a 12AX7
.
In the 1970s an improved and more rugged version of the 6N2P was introduced, designated 6N2P-EV (Russian: 6Н2П-ЕВ) Currently, a 12AX7
variant derived from the 6N2P-EV is being produced by Sovtek
, under the designation 12AX7WA.
A Chinese
version of 6N2P exists, labeled in Latin lettering (instead of Cyrillic) 6N2.
In the 1990s a (now extinct) line of "Red Bear" guitar amplifiers was being produced in Russia
by Novik Ltd. and distributed in the United States
by Gibson Guitar Corporation
. These amplifiers used 6N2P tubes instead of the much more common 12AX7
, prompting user modifications of the amplifier to 12AX7
, because the original Russian 6N2P was scarcely available outside of Russia.
On the photo, from left to right - 6N2P produced in USSR in 1967, 1974, 6N2 produced in China
and Soviet 6N2P-EV (left), produced in 1980.
Triode
A triode is an electronic amplification device having three active electrodes. The term most commonly applies to a vacuum tube with three elements: the filament or cathode, the grid, and the plate or anode. The triode vacuum tube was the first electronic amplification device...
vacuum tube
Vacuum tube
In electronics, a vacuum tube, electron tube , or thermionic valve , reduced to simply "tube" or "valve" in everyday parlance, is a device that relies on the flow of electric current through a vacuum...
manufactured in USSR, Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
and China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
with characteristics similar to the RCA
RCA
RCA Corporation, founded as the Radio Corporation of America, was an American electronics company in existence from 1919 to 1986. The RCA trademark is currently owned by the French conglomerate Technicolor SA through RCA Trademark Management S.A., a company owned by Technicolor...
12AX7
12AX7
12AX7 is a miniature dual triode vacuum tube with high voltage gain. It was developed around 1946 by RCA engineers in Harrison, New Jersey, under developmental number A-4522. It was released for public sale under the 12AX7 identifier on September 15, 1947. The 12AX7 was originally intended as...
. The most significant difference between the two is that 6N2P has its two filament elements connected in parallel, unlike the series filament connection of the 12AX7, and it is thus only possible to operate it from a 6.3 volt, 300 mA filament supply (whereas a 12AX7
12AX7
12AX7 is a miniature dual triode vacuum tube with high voltage gain. It was developed around 1946 by RCA engineers in Harrison, New Jersey, under developmental number A-4522. It was released for public sale under the 12AX7 identifier on September 15, 1947. The 12AX7 was originally intended as...
may be operated from either 6.3 or 12.6 volts.) The 6N2P also has slightly lower gain than a 12AX7
12AX7
12AX7 is a miniature dual triode vacuum tube with high voltage gain. It was developed around 1946 by RCA engineers in Harrison, New Jersey, under developmental number A-4522. It was released for public sale under the 12AX7 identifier on September 15, 1947. The 12AX7 was originally intended as...
.
12AX7
12AX7 is a miniature dual triode vacuum tube with high voltage gain. It was developed around 1946 by RCA engineers in Harrison, New Jersey, under developmental number A-4522. It was released for public sale under the 12AX7 identifier on September 15, 1947. The 12AX7 was originally intended as...
variant derived from the 6N2P-EV is being produced by Sovtek
Sovtek
Sovtek is a brand of vacuum tube owned by Mike Matthews's New Sensor Corporation and manufactured in Saratov, Russia. They are often used in guitar amplification and include the popular variants of the 12AX7, EL84, EL34, and 6L6 models...
, under the designation 12AX7WA.
A Chinese
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
version of 6N2P exists, labeled in Latin lettering (instead of Cyrillic) 6N2.
In the 1990s a (now extinct) line of "Red Bear" guitar amplifiers was being produced in Russia
Russia
Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...
by Novik Ltd. and distributed in the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
by Gibson Guitar Corporation
Gibson Guitar Corporation
The Gibson Guitar Corporation, formerly of Kalamazoo, Michigan and currently of Nashville, Tennessee, manufactures guitars and other instruments which sell under a variety of brand names...
. These amplifiers used 6N2P tubes instead of the much more common 12AX7
12AX7
12AX7 is a miniature dual triode vacuum tube with high voltage gain. It was developed around 1946 by RCA engineers in Harrison, New Jersey, under developmental number A-4522. It was released for public sale under the 12AX7 identifier on September 15, 1947. The 12AX7 was originally intended as...
, prompting user modifications of the amplifier to 12AX7
12AX7
12AX7 is a miniature dual triode vacuum tube with high voltage gain. It was developed around 1946 by RCA engineers in Harrison, New Jersey, under developmental number A-4522. It was released for public sale under the 12AX7 identifier on September 15, 1947. The 12AX7 was originally intended as...
, because the original Russian 6N2P was scarcely available outside of Russia.
On the photo, from left to right - 6N2P produced in USSR in 1967, 1974, 6N2 produced in China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...
and Soviet 6N2P-EV (left), produced in 1980.