This circuit simulates the effect of an inductance. Equivalent operational amplifiers can be used, and the power supply must be symmetrical. The circuit is from a 90's Poptronics.
We find this circuit in an American publication of 1978. It is intended only for cars that have...
In fact, this dimmer can be used with currents up to 1.5 A according to the General Electric...
This 6-transistor transistor radio was manufactured in Japan in the 1960s. It is a portable...