This amplifier for the 10 m (30 MHz) band has a gain of 12 to 15 dB having been found in an American documentation. Other RF transistors can be used like 2N2222 or 2N2218.
This circuit is for transducers (headphones or speakers) of 200 to 300 ohms. The frequency is...
This circuit for analog video signals was found in a March 1988 Radio Electronics. The Maxim...
Found in a 1977 publication this circuit is relayed from a signal carrier in a receiver....