Hello all.  Having built a 125 Wurlitzer back in 1971 I used a thin
material for the pneumatics on the valve chest that I believe was
Polylon, a red color PVC-like material.  At the time the only weak
spot was that after several years pin holes developed.

It seemed to work very well.  As I have just started building a 105
as my retirement project, I wonder if this really was the same material
and whether I should use a different material this time.

Les Higger
<bert@pacbell.net>