<VV> Anybody got a source for an electrically operated vacuum switch

[NicolCS at aol.com]

Jim, you will find them under the hood of most Toyotas.   They're called 
"Vacuum Switching Valves" or VSVs.  There in the  manifold runner controls, EGR, 
and EVAP systems and they have all sorts of  logic like  Off = Open, Off = 
Closed, Off = vent, plus the  opposites of these. I have manuals for many late 
model Toyotas, so if you  could indicate the logic you need I might be able to ID 
one from a particular  system.  
Craig Nicol

<snip>All this inertia switch  stuff got me thinking... I have been
meaning to put in a vacuum by-pass  switch in my turbo to turn off
advance at idle (I got a Dale advance/retard  vacuum unit).  I figure
some early turbos and maybe normally aspirated  cars had a solinoid
operated vacuum switch in them I could adapt I imagine  that in a
"junkyard near me" there are literally hundreds of little gems  waiting
to be dug up.
Call me crazy, but my son and I love  to visit junkyards and see
what we can find that we can use.  Jim Duane  <unsnip>