Found in a 1965 Radio Shack documentation this oscillator can be used with modern general purpose transistors like the BC558. The transformer is the output type for transistor radios.
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...