Posted by Geo-TH,In on December 27, 2021 at 20:45:53 from (50.102.18.187):
In Reply to: Re: Ford NAA question posted by Smalltowner on December 27, 2021 at 16:42:18:
The black gizmo with a white band is called a diode. Old school cars bypassed the ballast resistor when starting apply the full 12v to coil.
No ignition switch on Jubilee. No extra terminal on solenoid to apply 12v to coil while cranking.
So easy fix Apply 12v from starter to coil using diode bypasses ballast. The white band is the cathode so current only flows when 12v is applied to starter.
I did teach HS electronics for 31 years.
Bypassing ballast is something many leave out when converting 6v to 12v.
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