This Motorola circuit is from 1965. Collector currents must be 7 and 12 A for transistors. Equivalents may be used. The circuit is for contact breaker cars.
This amplifier circuit for instrumentation was found in the manual of the used integrated circuit...
We can use this amplifier with low impedance headphones with good performance. Possible...
This circuit was obtained from the November 1989 issue of Radio Electronics magazine. The circuit is...