Found in a Popular Electronics from the 90s, this circuit generates signals from 2 Hz to 30 kHz in different bands. The circuit can be powered by voltages from 5 to 12 V, depending on the application.
This circuit was found in a Motorola documentation from the 70s. The integrated circuit is from...
This circuit was obtained in a documentation from the 80's. However, using TTL it is still modern,...
This circuit converts an AC signal into a voltage of the same peak value with precision and is...