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.
This indicator makes use of an LM339 voltage comparator circuit that contains 4 internal...
This 3-channel sequential circuit, but which can be expanded further, uses triacs to drive...
This soft starter dimmer was found in a 1980s documentation. We can implement it with current...