This control for 12 V drills was found in a 90s Elektor. The components are current, and Q1 can be replaced by a TIP42 mounted on a heat radiator.
This lockable two-position servo control system was found in documentation from the 1990s. The...
The integrated circuit used in this project is not common today, as it was obtained in the Linear...
The outputs of this timer or CMOS timer configuration with the 4011 integrated can be connected to load...