This circuit is from an 80's publication. It makes use of small 6 V x 50 mA incandescent lamps. The diodes can be general purpose or even 1N4002. The transformer is 6.3 V with 100 mA or more current.
This power supply can provide 10 A currents. Its regulation is made by 7812 integrated circuit. The...
This source of constant current was obtained in an American documentation of 1973. The transistors can be...
In the MEMs line of the ST available on Mouser Electronics we highlight the MP23AB01DH audio...