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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TTL Oscillator (CB24223E)
We found this circuit in the Radio Electronics magazine of December 1972. It generates signals in 6...
Up to 110 MHz Oscillator (1 transistor) (CB13139E)
With the circuit shown in the figure it is possible to generate signals up to a frequency of 110...
Multi Purpose Timer (CB17469E)
This timer uses common components and can be used for time intervals up to a few hours. The...