In message , Mark Spice
writes

"David W.E. Roberts" wrote in message
...


I should have mentioned that I don't have a car so 12v stuff tends not to
work too well for me :-)

Other than that thanks for the advice. I knew really that a compressor was
excessive but you know how it is when you look through the catalogues trying
to justify potential purchases.

Well a 12 volt psu or a car battery are certainly cheaper than a
compressor
--
geoff