We found this circuit in a Poptronics from the 90's. Equivalent operational amplifiers can be used. The circuit must be supplied by a symmetrical source.
With an output power of 1.5 W under a 12 V supply, this circuit makes use of transistors that are...
I got this circuit from Hands-On Electronics, 1988. The American magazine no longer exists, but...
This circuit is from the Motorola Linear Databook of 1990. The values of the components depend on the...