This circuit can be used as a lockable shield. A pulse activates the relay that remains on even after the pulse disappears. The transistor is general purpose.
This regenerative detector circuit operates over a wide range of frequencies. The circuit was...
We now present the 4013 in its bistable configuration, in which we use 3 flip-flops (1 and a half...
This circuit was found in an American medical documentation from 1970. The circuit rejects the 60 Hz...