How many PDP-12's are there now?

So... all this discussion about PDP-12's has got me curious. How many of them are there in existence? It would certainly be interesting to get a list of machines and at least city locations -- I'll start the list: Ottawa/ON/Canada (mine) Roswell/GA/USA If anyone wants to send me info, I'll volunteer to collect and put it up on my website (I won't put email addresses or other incriminating evidence unless you want me to :-)). The other interesting thing that this discussion begs is the topic of (borrowed term) "biomagnification". It's from the environmental field, and basically relates to how bigger animals get more than their "fair" share of poisons because they eat smaller animals which have already concentrated the poisons in their systems. I've borrowed the term because lately what I've been thinking about is the accumulated collections of people who are no longer interested in collecting -- in this case, instead of just getting one or two machines at a time, you tend to get "clusters" of machines -- hence "biomagnification" :-) So... any collectors out there getting rid of PDP stuff? :-) Cheers, -RK -- Looking for Digital Equipment Corp. PDP-1 through PDP-15 minicomputers! Robert Krten, PARSE Software Devices +1 613 599 8316. Realtime Systems Architecture, Consulting and Training at www.parse.com