This 80's General Electric circuit is guarded by the noise-guard for operating current. The circuit has an input sensitivity of 3 pA. The font must be symmetrical.
This circuit is from an American magazine that no longer exists, Modern Electronics, in a February...
In the figure we have the amplifier application in a NOR gate, with reference voltage equal to the...
The frequency of this type is oscillator is given by the RC network. Calculations can be found in...