"gareth" wrote in message
...
Today the si570 magic oscillator seems to satisfy all our VFO requirements
in terms
of stability, frequency range and frequency increments, but will it always
be there,
for don't forget that the Plessey SL600 series was the answer to a
maiden's prayer in its time
but now is no longer available?


All things become obsolete eventually, old Bean. It's called progress.
--
;-)
..
73 de Frank Turner-Smith G3VKI - mine's a pint.
..
http://turner-smith.uk