klystron
The Raytheon 5837 Vacuum tube is a Broadband reflex
klystron, designed for CW or pulsed operation from 550
to 3800MHz, depending upon an external cavity. 150mW CW
output. 8MHz electronic tuning range. Four pin pee-wee
base, plus cavity contact rings and top cap. Pulse or CW
variant of 6BM6.
It was manufactured by Raytheon and Sylvania.
Electrical Data:
Filament Vf ..................6.3 Volts
If ....................... 0.675 Ampere
Prefered Substitutes...............CV5045
Substitutes .........................6BM6