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.

Metronome (CB18215E)
This simple metronome, from 1985 documentation uses only transistors and has two settings. For...
Limiting Amplifier (CB21763E)
This circuit is suitable for modulating AM transmitters. The circuit is from a 1977 radio amateur...
High Voltage Pulser (CB6253E)
This flasher was found in an old Hands On, but uses common components. The optocoupler can be...