Based on NXP 74HC logic, this circuit can be adapted for various uses. The circuit can also be used with 12V power, and the circuit replaced with a common 4046 PLL.
In this circuit the gain decreases as the input signal intensity increases. The circuit is from a...
This well-known circuit is another version of a 2-transistor transmitter found on the Internet. In this...
A 25 mVpp applied to the input of this circuit produces in the output a 1 Vpp signal. The...