[Radio Wrangler]

Might have been me.

HP used wire with a base white colour and often two stripes, one thinner than the other. We bought in the plain wire and ran it through a spinning painting machine where wheels of two thicknesses transferred dye from some little pots onto the wanted stripes. The pots and the wheel assemblies spun as the wire was wound from the bulk reel onto the wanted reel. The dye needed to dry quickly, so there was a lot of solvent in the air in the room where this was set up.

There was another setup to put a full coat of colour onto the base white wire where we needed solid colours. Look at the end view of this stuff and you see that the insulation is white through its thickness, with only the outer surface coloured.

A change in business attitude said that anything which could be farmed out must be, so then it got bought in, but this coincided with a dramatic reduction in wiring in instruments.

David