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.
The L1 coil consists of 20 to 100 turns of fine wire in a cardboard box where plant specimens are...
This circuit was found in a 1980s documentation from the manufacturer of the integrated. The...
The circuit also works as a synchronized rectifier and balanced modulator. We found it in the...