ALEXANDRIA, Va.—William H. Doherty was an engineer with Bell Telephone Laboratories in 1936 when he invented a circuit that used two tubes running in Class B configuration to act as a linear amplifier ...
Class C amplifiers have no place in audio, but do find use in radio transmitters. Class D, on the other hand, is an emerging technology. Class D amplifiers are frequently referred to as digital ...
Broadcast Solutions Electronics (Pty) Ltd. has launched a new 500 W FM transmitter/exciter using LDMOS amplifier technology. LDMOS amplifier technology offers exceptional efficiency in a Class C ...
This FM transmitter circuit uses four radio frequency stages: a VHF oscillator built around transistor BF494 (T1), a preamplifier built around transistor BF200 (T2), a driver built around transistor ...
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