This 4-stage circuit has a voltage gain of 10 and negative feedback. The circuit was found in an old MIT publication.
This interesting shield circuit was obtained from a Poptronics of February 2001. The American...
We found this automotive alarm circuit in a 90's Popular Electronics circuit. The circuit emits a...
We find this circuit in a technical documentation of 1976. The transistors can be the BD135 and...
