
Bouncing Ammeter
Some Mark III's experience a problem
where the Ammeter needle bounces between discharge and charge very rapidly while
at cruising speeds.
The cause appears to be that the old style Smith gauge, that was originally run
off of a point style regulator, can not properly manage the rapid switching of
modern electronic regulators.
This solution adds a jumper wire, as shown, across the the gauge to help absorb
some of the rapid switching. Most bouncing has been eliminated and the gauge
still reacts as normal when a charge or discharge is applied.
Jump made from 18 gauge wire and a 20
amp fuse

Bend flat blade connectors into a "U" shape.
Remove ammeter slip on connecters and open their fit with a flat screw driver.
Slip the connectors back on over both blades
