This circuit provides an audible signal when testing a TTL circuit. The circuit is from an old documentation, being fed with the 5V of the circuit under test.
This circuit is found in a 2005 Linear Technology application manual. The circuit monitors the High...
This circuit is from a 1992 Electronics Handbook. The circuit generates a special tone effect for...
We found this circuit in an old American documentation. The circuit can be applied to modern...