This circuit was found in a Popular Electronics from the 90s. The circuit uses a general purpose JFET. The coils depend on the signal range that must be amplified.
Different delays for the rise time and fall time of the output signal when compared with the input...
This simple general-purpose transistor mixer was taken from an article in Electronics Now magazine in...
September 2017 - Würth Elektronik High Power Ultraviolet LEDs can be obtained from Mouser...