Jimmy, here is a picture of my stock 6v Harrison fresh air heater which shows the wire connections clearly.
http://www.pbase.com/dennygraham/image/121512986 The hot lead is terminated in a bayonet connector where it connects to the lead that goes to the heater switch.
In case you’re interested here are a few more pictures of it in various stages of disassembly.
http://www.pbase.com/dennygraham/harrison_h-02-47
Denny Graham
Sandwich, IL

Last edited by Denny Graham; 01/30/2010 3:21 PM.

Denny G
Sandwich, IL