Solid State Relay (CB21717E)

Equivalent optocouplers can be used in this relay or solid-state shield. The power of the load depends on the triac used.

Delay with UJT and SCR (CB21419E)
This circuit was taken from the 1967 General Electric SCR Manual. The circuit can use virtually any...
Speed control using tachometer (CB7157E)
Found in National Semiconductor documentation from the 1980s, this circuit employs a power...
9 V x 200 mA power supply (CB1159E)
The different aspect of this source is the use of a 12 V lamp as a current regulator together with a...