This very high input impedance JFET circuit was found in the 1995 Encyclopedia of Electronic Circuits Volume 5. The JFET is a general-purpose transistor as is the output transistor.
This circuit is from a Linear Technology application manual. The circuit uses the LT1022 and has...
Found in a 1980 publication, this circuit triggers a power lamp, making it blink when light hits...
This circuit consists of two stages that each shift 180 degrees the signal. The circuit was...