This circuit with TTL integrated circuits was found in the December 1987 issue of Radio Electronics magazine. The circuit uses a LED scale and is suitable for gaming applications.
This circuit was obtained from HAM Radio magazine in an 80's issue. The FETs are types of the time...
Found in the September 1992 issue of Radio Electronics magazine. This circuit generates pulses that...
This blocking oscillator circuit was found in a Radio Electronics from November 1963. The...