The GU-33B tetrode is designed to operate for wide-band power application at frequencies up to 500 MHz in RF equipment.

General

Cathode: indirectly heated, oxide-coated;

Envelope: glass-to-metal;

Cooling: forced air;

Height: at most 85 mm;

Diameter: at most 50 mm;

Mass: at most 220 g.

NOS & NIB