This is a classic FM amplifier IF amplification stage configuration. The circuit is from a 1980s documentation. CN is the neutralizing capacitor.
Found in a 90’s Radio Electronics magazine, this circuit uses a component from the time, difficult...
The purpose of this circuit is to imitate the dripping of a faucet. The circuit was found in a...
The output transistors can be BC548 and BC558. The circuit is from a 1975 documentation showing a...