New old stock * No longer available for export. MFR: RCA, Hytron SKU: 837-USA
General characteristics: Filament voltage, V: 12.6 Heater current, A: 0.7 Type of current: AC Anode voltage, V: 500 Anode, mA: 60 Grid current second, mA: 30 Maximum power dissipation second grid, W:8 Output power, W: 20
All tubes new, military equipment and have "OTK" mark. Near equivalent: 837 and PK44. The tube is manufactured by Foton, Tashkent, Kazakhstan (new factory is Ulyanovsk).
New Old Stock * No Longer available for export MFR: VSI (Russia) SKU: 837
Designed to function as a frequency multiplier in mobile communications devices. New Old Stock * New In Box * No longer available for export MFR: Westinghouse SKU: 8084