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.
When you speak into the microphone of this circuit, the sound produced in the speaker resembles a robot...
With this circuit it is possible to trace the characteristic curve of a component using an...
Measuring capacitances and resistance this simple instrument was found in Radio Electronics...