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.

Automatic Transmitter Switch (CB24533E)
This circuit was found in the December 1977 issue of Radio Electronics magazine. The circuit uses...
Tone control (CB12811E)
We obtained this circuit from an old Argentine magazine. The circuit originally uses germanium...
High Input Voltage Regulator (CB13050E)
The 78XX series voltage regulator integrated circuits do not support an input voltage greater than...