In a message dated 2008/09/03, gel@................. writes:

> I remember using Invar back in my microwave vacuum tube days. Invar and=20
> similar metals hardly expand with increasing temperature. They are very=20
> different. I=E2=80=99m looking into Ni-SpanC 902. Just to see what=E2=80=
=99s available.

Hi Gary,

       I suggest that you look for Elinvar at the same time?

       Let me know how you get on, please?

       Regards,

       Chris Chapman  =20
In a me=
ssage dated 2008/09/03, gel@................. writes:



I remember using Invar back in=20=
my microwave vacuum tube days. Invar and similar metals hardly expand with i=
ncreasing temperature. They are very different. I=E2=80=99m looking into Ni-=
SpanC 902. Just to see what=E2=80=99s available.




Hi Gary,



       I suggest that you look for Elinvar at=20=
the same time?



       Let me know how you get on, please?



       Regards,



       Chris Chapman