Got some SUN or old garage tools.

I took a road trip to go see a friend a few states away.
I guess you could call it "pickin".
While I was there he gave me this great SUN Engine Performance Tester along with an old AC spark plug tester.
Any body have any info on these old SUN or AC units?









Thanks.
N8B

 

I'm pretty sure I have a manual for that unit. Shoot me a PM with any model numbers, etc. and I'll check it out.
-Bob

 

Thanks Bob. Will do.