Signal Corps TS27, what is it and what used for?

[Johan Willaert]

Came across this SC TS27 device...

 

It is obviously some kind of testing device, comes in a box...

 

Can anyone shed some light on what it is and how it was used???

 

Thanks

 

 

 

[Johan Willaert]

Label inside lid

 

 

[Jilly]

"Test Set TS-27B/TSM provides a means of testing wire communication lines and of locating faults in such lines. It may be used for direct measurements of conductor and insulation resistance and for the location of grounds, crosses, and shorts. It also may be used for the measurement of capacitance and for the location of opens in wire lines."

Technical Manual is here

https://archive.org/details/TM11-2057A

[Johan Willaert]

Thanks!