This signal injector and tracer (follower) was found in an old American documentation. The transistors can be general use and power is made with one or two common cells.
Found in documentation from the 1990s, this circuit supports equivalent transistors. The range is on...
Found in the book 303 Circuits, this circuit compresses signals from 25 mV to 20 Vpp to...
We found this circuit in a French technical documentation from 1982. The circuit can be...