AW: [sdiy] ASM1 Parts In OZ

[Nils Pipenbrinck]

<snip>

Ken wrote:
> Tempcos. Now this is where it gets ugly. I had to get these from
> other list
> members over seas. Some came from Paul at synthesis tech, some from Tom at
> EFM, and I think other list members also have them available. Very pricy
> though. You can just wack in 1k metal films to get it running if you have
> to, though you won't have temperature compensation.

Just to make the list of possible tempcos longer: I'm using the PT1000
sensors from Heraeus. They don't have 3300 ppm but 3900. And they are
expensive. I've added a small resistor in series to compensate for the wrong
temp-coefficient. Works very nice.

*hint* In germany there is someone selling 5 of these sensors on ebay about
once per month or so.

Cheers,

	Nils Pipenbrinck