6 4-Input NAND Gates
<UL>
<LI><b>M117B</b> is a drawing of DEC's M117B.</LI>
<LI><b>M117C</b> is a drawing of DEC's M117C.</LI>
<LI><b>M117E</b> is a drawing of DEC's M117E.</LI>
<LI><b>M117X</b> is a 'modernized' M117.</LI>