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.
This directed coupled amplifier uses a transformer to drive a low impedance loudspeaker. This...
This circuit for the positive front of a rectangular signal was found in an old documentation, but applies...
With the appropriate choice of C1 and C2 it is possible to divide the frequency of a rectangular 3 V...