< >> By my faulty memory, the actual computer is about 2.5'W x 1'H x 2.5L < >> Warning, they are HEAVY! The PDP-8I was about that size and that was a year or two later than the -9. The -9 has to be bigger. < You sure about that?? We had a PDP-9 running some Radio station Automat < equipment and the actual PDP unit was that one 'silver' box in the pictu < Our other racks were the tape players and interface boards. Everyone thought the 8I was 13" high(size of front pannel) but the box/backplane was nearly three times that. Anyhow the size of front pannels are often deceptive. Allison