Hints for using discrete mosfets for simple digital logic.

The basic mosfet inverter can be drawn as:

{{ :mosfet-inverter.png?400 |}}

Some issues to be aware of when going from this simplified sketch to a real, robust circuit:

===== Schematic symbol variations ===== 

===== Never let a mosfet input float =====

===== Source vs. Drain matters =====

===== N-Channel vs. P-Channel =====

===== What we're drawing here is sometimes called NMOS =====