This circuit of the 70's uses transistors of the time. The circuit can amplify signals from 10 Hz to 100 kHz and modern equivalent components can be used. The circuit is from Ferranti.
June 2016 - It can be obtained from Mouser Electronics Power inductors for automotive use of...
El circuito de la figura es un regulador de corriente con ajuste en el rango de 0 a 3 ampères. El...
This is a commercial circuit of a transistor amplifier of some watts with the OC30 transistor. The 12 V...