The purpose of this circuit is to limit noise peaks on a radio receiver. The circuit is from an 80's documentation. The diode is commonly used and the circuit is applied to a receiver IF stage.
This circuit indicates when the voltage of a 12 V battery is low. With changes, for example, the...
If mounted with SMD components, this transmitter will be so small that it can be installed inside a...
This circuit generates some very interesting tone forms having been found in an American...