3 3-Input Negative NAND Gages, 3 Loads
<UL>
<LI><b>B115A</b> is a drawing of DEC's B115A.</LI>
<LI><b>B115B</b> is a drawing of DEC's B115B.</LI>
<LI><b>B115X</b> is a 'modernized' B115.</LI>