MQ (PDP8), 2 FFs, SR, SL, Read-in, Clear
<UL>
<LI><b>R212D</b> is a drawing of DEC's R212D.</LI>
<LI><b>R212F</b> is a drawing of DEC's R212F.</LI>
<LI><b>R212J</b> needs a drawing.</LI>
<LI><b>R212X</b> is a 'modernized' R212.</LI>