This is the receiver for the previous transmitter. The signal consists of digital pulses with a compatible TTL or CMOS output. The integrated circuit is a 4093 and a photodiode of any type.
We found this circuit in the magazine Eletcronics Now of July 1994. The power supply is according to...
This circuit uses the 7815 regulator to obtain a voltage for motor control num shield for PC. The...
This simple Philips circuit from the 1960s can use any general-purpose transistor. The signal is...