Tom Dalton wrote:
> Can anyone explain why Reynolds initially made the 753 tube set in an
> unusual diameter? With such thin walls, the 26.8 post sizes imples
> that the OD was significantly smaller than "normal". I have seen a
> whole lot more 531 tubes in the imperial size than the smaller,
> metric size. So, why did they initially offer 753 in the less common
> O.D.?
Reynolds made both Imperial and Metric sizes from the beginning, but the first few years of Imperial production were exclusively for Raleigh, so everybody else had to use metric.
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-John Thompson (john@os2.dhs.org)
Appleton WI USA