This small regulator with transistors can supply 75 mA currents for charging NiCad rechargeable batteries. The circuit is from the 90s, using components from that time.
The integrated circuit used is a dual 555 CMOS. The circuit is from an English documentation and...
A 3-input OR gate can be made with an LM3900 amplifier, as shown in the figure. The purpose of the...
We found this conventional power source with a regulating transistor in a 2002 documentation. The...