Thermostat (CB6008E)

This circuit controls a heating element using a triac. Triac must be fitted with a heat sink. We find it in an American documentation from the 80s.

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LED driver (CB8024E)
Found in General Electric's documentation from 1970, this circuit is indicated for the so-called...
Motor Timer (CB14974E)
This circuit is indicated to determine the flight time of an electric motor model airplane. The...
Crystal test (CB7536E)
This circuit was found in a 73 magazine for radio amateurs of the 90s. The circuit uses two types...