Found in an RF Design from the 90's this circuit is intended for crystals of less than 1 MHz. Transistors are types of general use today.
In a voltage follower the gain is unitary. Input impedance is too high and output impedance too low....
This simple sensitive circuit was suggested in a July 1992 Radio Electronics issue. The relay is a...
This circuit generates sine low-frequency signals. The frequency depends on the twin-T network....