[Milsurplus] Softening hard coax

[J. Forster]

If it's for audio frequencies, is it true coax, rather than shielded wire? I may
be poking my head in at the tail end of this thread, but coax that's rubber
covered is pretty uncommon. Plastic jacketed coax is much more common, and
really does not harden much.  Rubber jacketed shielded wire is easily available.
BTW, the difference between coax and shielded wire is that the former has
controlled impedance.

-John

James C Whartenby wrote:

> I guess nothing is special about the coax.  The instrument is a GR Vacuum
> Tube Bridge, which think it is from the late 1930s.  The coax, all eight
> of them, are used as a "patch panel" to connect to a tube socket adapter.
>  They are about two feet long.  The coax connects to what looks like
> shielded banana plugs.  The whole thing runs at audio frequencies so I
> doubt that there is anything critical beyond low capacitance.