Power Amplifier Module
<UL>
<LI><b>M627A</b> is a drawing of DEC's M627A.</LI>
<LI><b>M627C</b> is a drawing of DEC's M627C.</LI>
<LI><b>M627E</b> is a drawing of DEC's M627E.</LI>
<LI><b>M627X</b> is a 'modernized' M627.</LI></UL>