This amplifier is from Motorola's 1990 Linear Databook. The circuit can be used with operating amplifiers with the same characteristics and the power supply must be symmetrical.
This circuit is from an old French documentation from the 70s. The coupler admits equivalents and...
This fast trigger circuit allows the counting of up to 300 pulses per minute. The circuit is from...
Frequency modulated signals up to 500 kHz can be decoded with the PLL we show. The demodulated signal...