Wiring details of commercial geophone cables I retooled to use split-spring geophone connectors and a smaller takeout spacing

Two leads for a single geophone are soldered to the positive and negative halves of an inline split-spring connector.

Takeout spacing is 3 m.  There are 3 takeouts per geophone cable and two geophone cables per field radio unit ("SU6R")

An inline split-spring connector

An orange/red split-spring connector shown assembled but disconnected from the adjacent geophone cable