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.
This circuit, like the previous one, can be controlled by a microcontroller, functioning as a...
Found in the March 1985 issue of Radio Electronics magazine, this circuit uses a digital module from...
In the figure we have the way to use the low consumption flasher LM3909 with 6 V supply to excite a...