New project: Allen Engine analyzers, restoration?

[HWYCRZR]

The start of my rudimentary schematics. I am sure that my diagrams of components don’t meet any electrical standards. I need to draw mine out and then see if I can translate the factory schematic that is closest to mine so I can troubleshoot.

 

[1970cat]

maybe something helpful here : Assorted Engine Analyzer Manuals from Sun, Allen, Thomas : Sun Electric Co., Thomas, Allen and other respective authors / manufacturers : Free Download, Borrow, and Streaming : Internet Archive

 

[HWYCRZR]

maybe something helpful here : Assorted Engine Analyzer Manuals from Sun, Allen, Thomas : Sun Electric Co., Thomas, Allen and other respective authors / manufacturers : Free Download, Borrow, and Streaming : Internet Archive

Thanks, I will check it out.