This interesting circuit of the 50s uses a fluorescent lamp to obtain a stroboscope useful for the rotation of motors. The circuit uses a power valve to control the 10W fluorescent lamp.
This circuit can detect both light and shadow using an LDR as a sensor. We found the circuit in an...
This circuit for conventional lines was obtained in a 1996 documentation. The circuit uses common...
The presented circuit uses a symmetrical power source to supply an amplifier with the LM139 or...