This circuit was found in a Motorola documentation from 1968. The circuit makes use of FETs and bipolar of the time and can be applied to modern equivalents.
Found in a 1965 General Electric documentation, this circuit uses a zener diode to obtain the...
This oscillator with the PLL 4046B was obtained from a 90s Radio Electronics. The circuit...
This circuit works as a variable transformer that measures the power applied to a 110 V load (and...