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Sounds good. I ask because I've got am 004a with no output I'm currently working on and have been keeping an eye open on others with similar issues hoping to learn what I can. Good luck on yours. Mike

What ever happened to the repair of this Exciter/Voltage regulator? Mike

My variac I ordered came in so I continued the troubleshooting as follows: 1 - Sensing ckt test. Apply 95 vac to J9 A&B. Measure across R15. Expect 22 vdc; Actual 22.3vdc - GOOD 2 - Power ckt test. Apply 208 vac to J13 L&M. Measure across J13 R&S. Expect 48vdc; Actual 50.2 vdc - Probably Just...

the exciter coils measure about 2.0 ohms. After disconnecting the wires going to the exciter coil I measure 24 vdc after engine starts while holding switch in start. It appears to me that tells me the problem is definitely in the A11, and likely in the VR circuit. My next step would be to add...

I do have and have read the section on troubleshooting the A11. I’ve actually got a variac on order to conduct those tests. I was trying to determine if there is anything external to A11 that could cause the symptoms. I don’t want to end up buying a module and not have that be the problem!

Looking for assistance on troubleshooting to determine if the problem is definitively the A11. Symptoms are the typical, no voltage after start up. While holding the start switch in the start position voltage will build to about 50vac but immediately drops to 0 as soon as start is released...