With this circuit it is possible to measure RF signals with a common multimeter. Signals up to 200 MHz can be detected. The diode supports general-purpose equivalents.
Found in Motorola's 1965 manual, this full-wave dimmer controls a load that depends on the used...
The two adding and differentiating circuits with operational amplifiers given below were obtained from...
This sophisticated circuit was found in the November 1978 issue of Radio Electronics magazine. Based on...