This circuit was found in Linear Technology Applications of 1997, using components of the time. The circuit transmits video signals bidirectionally over twisted pair.
Obtained in a 1969 Ferranti documentation, this circuit dissipates only 2.2 mW with 4.5 V. The...
This configuration is traditional and can be found in many other circuits in this section. The...
Suggested by General Electric in a 1965 publication this circuit uses a light bulb. Can be changed...