[TR] Coil and spark plugs polarity

[Chip19474 at aol.com]

wow, Randall....I haven't seen those words since my days back in College  
studying vacuum tube theory....just for kicks, try running that explanation 
past  a bunch of "Tuner guys"!!!!
 
Chip Krout
Delaware Valley Triumphs,  Ltd.
Skippack, PA 
1962 TR4 CT2052L
 
 
In a message dated 11/9/2014 2:05:22 P.M. Eastern Standard Time,  
TR3driver at ca.rr.com writes:

BTW,  this effect is the same way that vacuum tube diodes work.  By heating 
the  cathode, it is much easier for electrons (aka
current) to flow to the plate  when the plate is positive.