> > I just assume that the existing ones
> > won't be replaced any time soon (since they presumably
> work) and that
> > the natural replacement rate is relatively low.
>
> Extremely low. The tube rigs being replaced will become the
> standby units, and the current standby units (many dating to
> the 1950s) will go out to
> pasture.
The people I know who are into telephones seem to
let it get out of control and start to try to build
major exchanges in the back yard.
I guess that there will soon be another breed of
collector with large transmitter masts and
glowing valves in the back garden :-)
Antonio
--
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Antonio Carlini arcarlini_at_iee.org
Received on Wed Jun 23 2004 - 17:14:50 BST