Designed to be used in relay and grid-controlled rectifier applications. New old stock * New In Box * No longer available for export. MFR: RCA, Westinghouse, Sylvania, GE, Tung Sol, National SKU: 2D21
Designed for use in coaxial cable amplifiers, video amplifiers, broad band IF amplifiers in communication links, and TV equipment. New old stock * No longer available for export. MFR: Amperex SKU: 7737
Designed to function as an RF amplifier in the UHF range under harsh conditions such as mechanical shock, mechanical vibration and radiation. New old stock * No longer available for export. MFR: GE SKU: 7077