Ignitors (what are they?)

From: 	Matthew Mills[SMTP:megavolt-at-usa-dot-net]
Reply To: 	megavolt-at-usa-dot-net
Sent: 	Thursday, December 04, 1997 12:49 PM
To: 	Tesla List
Subject: 	Ignitors (what are they?)

Hi People, recently I walked into  scrap metal yard [ouch!!] and found
it to be a gold mine of items for tesla work.  I picked up a good length
of copper pipe for my spark gap, several transformers, 2, 5 inch fans
power pole insulators and a spool of wire.  While I was there I noticed
2 boxes with some eletronic gadget in it, they are called Ignitors and I
was wondering ...What they are, What they are used for, and whether its
worth me buying them (i can get them for $15) They are approx. 3.5
inches in diameter and  4-5 inches long with a 1/2 inch braided lead at
one end.

Thanks to any who reply.