This simple 15 V power supply was found in an article describing an assembly in the January 1987 Radio Electronics magazine. The power supply is used to power the circuit described.
We find this circuit in American documentation from the 1980s. The accuracy of the circuit depends on the...
The presented circuit uses a symmetrical power source to supply an amplifier with the LM139 or...
High quality sound can be obtained from this transistor amplifier. The output transistors must be...