This circuit was found on an 80's Ham Radio. The transistor admits equivalent. The circuit can generate 20 to 100 MHz signals operating at the fifth harmonic of the crystal.
This stage was found in a 1964 Electronic Design. The transistors are of the time and the shape of...
This configuration with the 741 Operational Amplifier has an NAB equalization for magnetic...
We found this circuit in an application note from Linear Technology of the 90s. The circuit uses...