This circuit was found in Motorola's 1967 documentation. The circuit makes use of power transistors of the time. For pulse pickup an appropriate pickup coil is used.
The EVAL-CN0397-ARDZ evaluation board from Analog Devices is compatible with Arduino shields to...
The transistor may be any general purpose, but the integrated transistor is not common today....
This is a traditional complementary configuration that provides good audio power with excellent...