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 was found in a Radio Electronics issue from May 1989. Please note that it may not...
This circuit is from an 80's publication. It makes use of small 6 V x 50 mA incandescent lamps....
The circuit below shows how to configure 3 gates of a 7400 to obtain a rectangular signal from a...