Band-Pass Filter (CB14921E)

This circuit was found in a Poptronics of the 90's. The components can be changed to the desired frequency. The power supply must be symmetrical.

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Morse Oscillator (CB22050E)
This code practice oscillator was found in an English publication from the 80's. The circuit can...
Overcurrent Locked Current Sensor (CB5904E)
This circuit that also has a Power On reset was obtained from a 2005 Linear Technology manual. The...
TTL binary adder (CB22430E)
This circuit is based entirely on TTL gates. The circuit must be powered by a voltage of 5...