This circuit, obtained from a 1965 magazine, can still be assembled using some modern equivalent components. The transistors may be BC558 and the transformer is obtained from a disused transistor radio.
We got this circuit in a publication of 1987. This is an audio limiter, a circuit that cuts peaks...
When S1 is in 1, the circuit operates with of half the total power applied to the load. When in...
With the figure circuit it is possible to control the amount of heat generated by the heating...