Solar timer (CB20498E)

This very low consumption circuit can be powered by a solar cell. The time indication is given by a microammeter.

Unijunction monostable (CB5425E)
This circuit was found in an American 1980s documentation. The transistors admit equivalents and the...
Offset Adjustment Sample and Hold (CB5958E)
We find this circuit in a 1980s documentation. The circuit can be applied to modern operators with...
10 W Amplifier (CB6175E)
This circuit is from Mullard documentation from 1969. Transistors support current equivalents. Output...