Analog switch (CB21253E)

This circuit was found in an Electronic Design from the 90s. Operational amplifiers admit modern equivalents.

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5 V x 60 mW Audio Amplifier HT82V732 (CB15585E)
In the figure we have an audio amplifier suitable for portable applications in both mono and...
FM 1W Transmitter (CB23547E)
This circuit was sent by our longtime collaborator, Adriano Muniz Moura – Pirapora-MG. The...
Rectangular Oscillator (CB12973E)
The oscillator shown in the figure generates a rectangular signal with a 50% active cycle (square)...