The figure shows the equivalent circuit for the LM381 audio preamplifier IC. The circuit was found in the February 1990 issue of Radio Electronics magazine.
The values of the components of this Mullard (Philips) circuit depend on the desired voltages. The...
Found in a documentation from the 90's, this circuit already includes an amplification stage. The...
This simple circuit that interrupts the supply of a 12 V load in the event of an overvoltage was found in...