This is a very simple configuration of NAND or NO-AND function with two general-purpose transistors. For 5 V logic the resistor is 2k2 and for other logic it must be between 2k2 and 10k.

This is a very simple configuration of NAND or NO-AND function with two general-purpose transistors. For 5 V logic the resistor is 2k2 and for other logic it must be between 2k2 and 10k.