05-05-2016, 09:53 PM
If it was a non-metalic armored cable, the telephone wires were tracers for the cable and the tubes were probably intended to be fiber optic conduits. In another lifetime I attended a seminar for ATT and Graybar Electric on fiber optic cabling. They said the tracers were added after some company buried over 1000 miles of fiber optic cable without the tracer and had to find a break in it. Turned out some farmer cut it with a backhoe.
Logan 200, Index 40H Mill, Boyer-Shultz 612 Surface Grinder, HF 4x6 Bandsaw, a shear with no name, ...
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