No subject

[David ilvedson]

Pre-stretched wire is old news...Jack Roll in Oakland made it and
sold it some 20 years ago or so.

******

Jack Roll demonstrated his method at a PTG meeting in SF in the mid-70s.  As I
recall he had a device for putting tension on the wire using weights, then,
using alligator clips and a rheostat of some sort (maybe from a model
railroad), heated the wire by running current through it.  The temperature he
raised the wire to was critical and he measured it with a set of color-coded
wax crayons--each color having a different melting point.  The wire was
allowed to cool and the tension was released.  At the time people who used the
wire swore that the wire was stable upon installation.

Bob Hohf
Wisconsin