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Re: Alarm system



Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


I have the cap style sensitive squibs you might need.

Dr. Resonance
 >
 > I have also had the thought of adding a microwave horn in series with the
 > gap.  Wire lengths can be very long for hardwire systems, (15m and up) and
 > short for radio controlled systems.  At least the coil should produce
enough
 > harmonics to key a reciever.  An out of tune secondary would help as well.
 > Most of the squibs that I have are the 12V pyro squibs for theatrical
pyro,
 > which won't work.  Most caps will fire 1.5V range if I remember correctly.
 > I should check with the manufacturers about getting some squibs that are
as
 > sensitive as caps for testing.
 >
 > It was smart putting the phenolic in the van!  I got there as it was just
 > sprinkling.  It would have been soaked if I had put it under your car.  I
 > got that soaked just getting out of the van.
 >
 > David E Weiss
 >
 >
 >  > Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com>
 >  >
 >  >
 >  >
 >  > Dave:
 >  >
 >  > It requires a certain amount of I^2 * t to set off an elec. blasting
cap.
 >  > For blasting safety planning, a 25 mA maximum is required, however,
this
 > is
 >  > a large margin of safety.  For actual initiation a current of 250 mA
 > minimum
 >  > is required per cap.
 >  >
 >  > I doubt you would get this induced current at any distance over 25 feet
 > with
 >  > a TC unless the "receiving circuit" consisting of the cap lead wires
just
 >  > happens to be the resonant freq of your coil.  You could try SSTC and
 >  > sweeping a range to get it to work.
 >  >
 >  > When you drop by for the caps I will give you some elec. squibs (burn
not
 >  > blast) to use for testing this range.
 >  >
 >  > You looked like a drowned rat at EAA so I thought it might work out
better
 >  > to get the phenolic at a later date.
 >  >
 >  > Dr. Resonance
 >  >
 >  > Resonance Research Corporation
 >  > E11870 Shadylane Rd.
 >  > Baraboo   WI   53913
 >  >
 >  >
 >  >
 >
 >
 >