This circuit provides signals in phase with the input and with the phase inverted. The circuit was found in documentation from the 1990s. Transistors are commonly used.
So This circuit was published in a 1982 English magazine, but can be easily assembled using BC548 for...
With this circuit it is possible to tune an AM signal using a 5k potentiometer (4k7). The circuit was...
This power source was found in a 1968 Electronics World. The transistors are from that time. The...