This configuration was found in an English magazine from 1965. It is valid for any junction FET. The input impedance is 5.5 M ohm higher than conventional stages.
XTAL from 4 to 20 MHz can be used in this oscillator. The XRF choke can range from 10 to 100 µH...
This zero crossing detector is of the 1993 Motorola Linear Interface ICs. The source is...
This conventional slow-moving circuit uses incandescent light bulbs, but can be changed to use...