Found in an Electronics World of 1968 this circuit can use current SCRs and the diodes are according to the lamp. The Circuit only works with incandescent lamps.
L1 is the secunday wound of a common power transformer with voltages between 6 and 12 V and...
With 12 V of power and 8 ohms in each speaker we have 1.6 W of power per channel. With a 22 V...
This circuit is from the time when seat belts were still being adopted. Obtained from a 1976...