6N15P = 6J6 = ECC91 tube. Double triode
The 6N15P (6Н15П) double triode is designed for use in high-frequency stages.
The 6N15P double triodes are miniature devices enclosed in glass bulb and are provided with a seven-pin base and an indirectly heated oxide-coated cathode.
The 6N15P tube double triode are resistant to ambient temperature from -60 to +70°C and relative humidity of 95 to 98% at +40°C, as well as to vibration with an acceleration of 2.5g and impact loads pu to 35g.
All tubes new, military equipment and have "OTK" mark. Near equivalent: 6J6 and ECC91.
The tube is manufactured by the Reflector plant, Saratov, Russia.
Type: Double triode
Application: in HF stages in special equipment
Cathode type: oxide,indirect heating
Envelope: glass, miniature
Mass, g: 12
Filament voltage, V: 6,3
Filament current, A: 0,42-0,48
Anode voltage, V: 100
Anode current, A: 0,0065-0,0125
Anode power, W: 1,6
Steepness, mA/V: 4,0-7,3
Reverse grid current, uA: 2
Microphnic noise, mV: 100
Socket type: rsh4
All datasheets here.