Found in an 1868 Mullard documentation this circuit has a dynamic range of 10 Hz to 25,000 Hz. Modern equivalent transistors can be used.
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...