[H.G.P.]

I swapped out another brand new ignition switch I keep as a spare, and the exact same thing happens on the in board voltmeter.........the voltage will start at a reading of around 12-13 volts, and then just as I can feel the "spring tension" on the ignition switch to the "on" position, the voltage indicator moves right down to zero, just before the starter cranks. (the starter is cranking fully therafter ok)

(I'm using a Sperry digital Multimeter. It's giving consistent readings on the "suspect coil" of zero. And another good coil (from another car) of correct ohms above zero.

(on other note, the battery charger I use, shows the battery properly charged, could there be something else wrong with the battery that would not show on the charger? )