Hello Fern,
Try:
http://www.worldmagnetics.com/
We used allot of these switches in systems that
monitored liquid levels via a very low nitrogen
pressure in a heated acid bath, (for a semiconductor
wafer etching process). The safety circuits would shut
down the heaters if the levels dropped below the set
point.
They have some very sensitive types that should do
what you want.
But do not solder to the blade terminals, use quick
disconnect lugs. If you solder to them, the heat will
destroy the internal membrane and thus change the
pressure switching characteristics!
Tom
--- Fern Rivard <crc@cyberlink.bc.ca> wrote:
>
> I'm in the process of putting together a hb hf
> amp using the Eimac 8877 tube. I want to make sure
> that it's bullet proof in case I should have a
> failure with the blower so I'm trying to find a
> source of air flow switch similar to what I believe
> some Henry amps used a Rotron 2A-1000 but I can't
> find anything on that switch anywheres. Any leads
> would be much appreciated.
> Thanks from Fern
>
>
> _______________________________________________
> Amps mailing list
> Amps@contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>
____________________________________________________________________________________
Looking for a deal? Find great prices on flights and hotels with Yahoo!
FareChase.
http://farechase.yahoo.com/
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|