This circuit can work with almost any JFET. The circuit is from an Electronics Now from April 1993. It is powered by a 12 V battery, but can also be powered by 9 V.
This setting applies to virtually any photo transistor and any operational amplifier. The power...
This circuit detects noise peaks at the source of a logic system and is reset by pressing SW2. The...
This circuit was found in Linear Technology documentation from the 90's. The circuit uses...