[R-390] a small point re Bristo

[wli]

Ran across an interesting article re general guidelines for restoring comm gear on an British website. We have already hashed over much of what they say.

One interesting tidbit came up: those special screws used in shaft clamps and knobs are called *grub screws* and are manufactured as a Bristol Multiple Spline screw.

So to be accurate: these are Bristol screws, and not Bristo

Often they are secured with a green Glyptol varnish.

To free up, heat the core with a hot tiny soldering bit for a few seconds, then it should break the seal using a Bristol key.

W. Li