Another possible source is the vacuum pumps they use in those food vacuum sealer machines. they are small, d relatively quiet and surprisingly strong. I found some surplus that were inexpensive here: https://www.surpluscenter.com/item.asp?item=3D4-1801&catname=3D DougM On Mon, Oct 18, 2010 at 9:43 AM, wrote: > Quoting John Gardner : > > > ... wasn't yet desperate enough to use steam :-). > > > > Sounds like you're spending a lot of time in loco cabs. > > > > Riding the Red Rooster? > > > > :) > > > Those were the good old days of adventurous travel. This is what > modern Chinese trains look like: > > http://www.flickr.com/photos/25301061@N06/5093992744/ > > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .