[GreenKeys] 1940 Britih Teleprinter film

[Brenda Gentry]

The film is great. Not only is it a fine explanation, it is in color, 
which would be even more unusual because it was in 1940 when the UK was 
at war. Finding a copy of the film is fortunate because the color 
process used is far better suited for making only one copy. It can make 
multiple copies, but the generations degrade quickly. It is likely a 
very rare film. Regarding the pneumatic tube systems, Lamson, a major US 
manufacturer, was located here in Syracuse.  The larger department 
stores downtown had them and they were used into the 1990s when the 
stores closed and were torn down. No one I am aware of tried or 
succeeded in saving any of the systems.

      Brenda Gentry, KA2IVY

On 8/19/26 5:10 PM, Joseph Corda via GreenKeys wrote:
> Thanks for sharing John !
> Joe ( N1JBQ )
>
> On Wed, Aug 19, 2026 at 14:51 John Lawson via GreenKeys 
> <greenkeys at mailman.qth.net <mailto:greenkeys at mailman.qth.net>> wrote:
>
>     Has astounding detailed working models of the various parts of the
>     system, including neon tubing representing the loop wiring…
>
>     https://www.youtube.com/watch?v=Mi2Sx-ZY410
>
>     John KB6SCO
>
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