This small signal amplifier circuit was found in Motorola's 1969 documentation. The FET and the transistor can be of any type and is battery powered since the consumption is very low.
This circuit for very long-time intervals was found in the March 1993 Radio Electronics magazine. Times...
This circuit can operate with signals up to 60 MHz using the indicated operational. We found it in...
Activating a relay from pulses (from a monostable, for example) can be useful in many types of...