Fixing my Black and Decker 14.4V Battery Charger

UPDATE!!! – I revisited this repair. Read the history below then go here:
Black and Decker 14.4V Battery Charger Repair (revisited and improved)
History: I own a 14.4V Black and Decker cordless drill with a laser. My wife bought it for me for some reason; probably because I liked it, and she wanted me to build something.
Measuring the voltage drop across the 10Ohm resistor

Measuring the voltage drop across the 10Ohm resistor

A little over a year ago, I was given a 14.4V B&D Firestorm drill that quit working. The Firestorm charger quit charging, as verified by the transformer windings giving me an open reading on the “Oh-meter”. To clarify, “‘Oh’, that’s why it isn’t charging.”
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