The circuit in the figure is an amplifier with gain 10 for alternating signals using the 741. The circuit is from an article in the Radio Electroics magazine of May 1989.
This circuit allows you to read temperatures with a common digital voltmeter. We found it in the...
This Morse code practice circuit produces a tone at the speaker whose frequency depends on C1 and...
This circuit consists of a voltage regulator for 6 V batteries with a very low voltage drop. The...