This sensitive two-transistor circuit was found in the June 1965 Radio Electronics magazine. The circuit has low drift and uses an analog instrument. The input resistance is high.
Found in a magazine 73 for radio amateurs, this circuit operates in the 144 MHz band, at a...
The frequency of this oscillator depends on the crystal. The transistor supports equivalent, and...
This simple bridge circuit can be used for impedance or resistance measurement using a high...