ID:
1249
Maker's Name:
Unknown
Dimensions:
11 × 11 × 21.5 cm
The 833A triode was used as the final Class C stage in plate modulated AM broadcast transmitters. It was clamped in a base that supplied filament power. At full ratings, it required forced air cooling.
The 833A valve is popular with Tesla coil experimenters as it is readily available second-hand at low prices. It is rugged and simple to operate.
Book reference:
RCA Transmitting Tube Manual TT-5
