Tride Valve

This valve is used for diatheramy 500 watts, pvc welding machines, pre- heating purpose, and for medical purpose
the 833a is a power triode intended for use in rf amplifier, oscillator, or class b modulator service. The 833a features rugged construction for high power rf transmitter applications. The envelope is fabricated from hard glass intended specifically for the high-temperature operation of transmitting tubes.
The internal tube parts are supported by low loss ceramic insulators for high-temperature operation and high voltage hold-off. The rugged grid structure is particularly well suited for industrial heating applications.
Technical specifications
electrical
filament thoriated-tungsten
voltage (ac or dc) 10. 0 ±0. 5 v
current 10 a
amplification factor (average) 35
direct interelectrode capacitances (grounded filament)
grid to plate 6. 3 pf
grid to filament 12. 3 pf
plate to filament 8. 5 pf
maximum frequency for full ratings 30 mhz
mechanical
cooling forced air
socket none. Post terminals
operating position axis vertical, with filament posts up or down; horizontal with plate in vertical plane (on edge)
nominal dimensions diameter overall height 116. 8 mm (4. 60 in. ) 219. 2 mm (8. 63 in. )