Mallory Automatic Coil

cobbadog

Active member
I am only guessing but the two terminals on the end where the metal cover is will be power in and then out to the distributor. The single post on the top is for the HT lead.
 

David Cave

Subscriber
One post (post 1) on the front actually is power for a very small relay/switch that is behind the front cap. The other post (post 2) on the front seems to go to a resistor that gets shorted out by powering post 2. Other measurements would indicate you are correct about the center post on the top. We have seen similar units that have a capacitor (condenser) attached to the other terminal on the top.
 

David Cave

Subscriber
For others, in the future, who may run into this same device attached is an application schematic provided by a clever guy who goes by the name SurferJade.
 

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