6C19P / 6U19P = 6AF3 = EY83 tube. Damping diode
The 6C19P damping diode has been designed to function as a damper in line scanning units of television receivers.
The 6C19P (aka 6Ц19П) damping diode are enclosed in glass bulb and are provided with an nine-pins. Cathode: indirectly heated, oxide-coated.
Vibration: at frequencies from 1 to 60 Hz with acceleration up to 2 g. Multiple impacts: with acceleration up to 15 g, at impact duration up to 15 ms. Ambient temperature: from -45 to +70 В°C. Relative humidity: up to 98% at up to 25 В°C.
All tubes new, military equipment and have "OTK" mark on tube or big factory box. Near equivalent: 6AF3 and EY83. This tube is not 6S19P.
The tube is manufactured by the Yantar, Vladikavkaz, Russia.
Filament voltage, V: 6,3
Heater current, A: 1,1 ± 0,1
Anode voltage opposite limit (pulse amplitude), kV: 4.5
Anode current limit (peak value), mA: 450
Rectified current limit, mA: 120
The voltage between the cathode and heater limit (pulse amplitude) at a negative potential heater, kV: 4.5
The voltage between the cathode and heater limit (DC) at a negative potential heater, V: --
The internal resistance, ohms: 100
Horizontal Frequency 12 kHz smallest
Capacity cathode - heater, pF: 3.5
Design - a miniature glass 9-pins
All datasheets here.