This is a 1960s amplifier setup found in a period publication. The circuit uses a special driver transformer that inverts the phases of the signal to excite the output transistors.
This flashing allegory with 555 integrated circuits was found in the Radio Electronics...
This interesting circuit found in a European publication from the 1990s eliminates the voice that...
This circuit also functions as a phase detector. The components used are not common. We found this...