C11 tachometer

[didier]

Just got a C11 Jaeger Watch Co tachometer in fairly good condition.
I would like to install it in my Experimental L4 project with a C85-12.
Is there a way to mount a standard tach cable to the back connector witch is different than what I am used to, with some sort of adapter?
The connector looks like a 7/8 male thread.

 

[3Point]

 

[AOP]

 

[huston marlowe]

 

[Fifinella]

 

[AOP]