GU-48 (GU48,RCA 833A,PL833A,833) 1kW Tube
GU-48 Russian Tube. New in Box.
Power Triode, analog RCA 833A
See GU48/833A tube datasheet at pdf file:
The GU48/833A is a power triode intended for use in RF amplifier, oscillator, or class B modulator service.
The GU48/833A 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 appliciations.
It can also be used for audio amplification : Wavac SH-833 $50k: also for Tesla coil :
These tubes are still being sought after today over 65 years after their introduction.
833A is Legendary American Tube!
See Wikipedia information:
Offered GU-48 tubes - their high-quality Russian analogue. Made in USSR at 1990-92y.
Tubes are received from old storage. Never used tubes in original box.