Tetrode
The Winged C Svetlana 6N1N / 6P1P - EV Vacuum tube is a
Soviet-made miniature 9-pin beam tetrode vacuum tube with
ratings similar to the 6AQ5, EL90 and the 6V6. Because of
a different pinout (a 9-pin base versus 7-pin base) than
an 6AQ5/EL90, it cannot be used as a plug-in replacement
for these types, however, it will work in the same
circuit with component values unchanged. Its maximum
plate/screen voltage and dissipation ratings are
actually slightly higher than a 6AQ5. A
ruggedized/extended ratings version of the tube is
designated 6P1P-EV (Russian: 6Ï1Ï-ÅÂ) roughly equivalent
to the 6AQ5W. A Chinese-manufactured version of the tube
also exists, labeled 6P1.
The type was commonly used in Soviet-built vacuum tube
radios and TV sets as an output audio amplifier, until it
was replaced by the higher-performance 6P14P (EL84) tube.
It was also used in output stages of low frequency
amplifiers.
Manufactured in the 1980's, This component was made
especially for the Russian millitary industry.
Electrical Data:
Heater Voltage ................. 6.3 V
Heater Current ................. 460 to 525 mA
Preferred Substitute.......... 6N1N, 6P1, 6P1P - EV
Substitutes ............................ 6AQ5, EL90