Complementary symmetry stage (CB22237E)

We found this step in an old documentation. The transistors are of the time and the power supply symmetrical.

Crystal Calibrator (CB21783E)
This circuit generates a 1 MHz signal for general equipment calibration. The circuit is from an...
FET Preamplifier (CB404)
This simple preamplifier presents a high input impedance and can be used with microphones, piezo...
Two meter amplifier (CB8980E)
This circuit for the two-meter band of radio amateurs was found in 1980s documentation....