This circuit was suggested by Texas Instruments in a 1968 publication. The transistors are of the time, and modern equivalents can be used.
Found in 1966 General Electric documentation, this circuit uses solicon unilateral switches (SUS)...
This circuit was found in the May 1989 issue of Radio Electronics magazine. The components can be...
May 2017 - Qorvo QPL9065 low-noise amplifiers can be purchased from Mouser Electronics for a...