Voltage problems, cutting out when hot

What the heck is that?
A CS116 or something?
What's the rotor draw on that thing?
And 0.4 Volts ripple with 2 Volts acceptable?
I don't know what that's for.
Maybe one of the other guys here knows.


And did you follow what @67Dart273 was posting about with the current vs. voltage?
It's the key to troubleshooting with voltage drops.

If not, or not sure, take some time to study this post.
High Charging Rate. Found Voltage Drop Need Guidance Please

Then this one about field circuits and current flow.
Charging system troubleshooting