[sdiy] Tempcos

[harrybissell]

I don't know that the surface mount tempcos are that much better than the thin film
through hole types from Micro-ohm.  These are a little over $1 each in hundreds... could you
do a board for that ???

H^) harry

damion at poweracoustics.org wrote:

> If you go to digikey.com and type CDCT-ND into the search box, you'll get a bunch of values that they have available.
> They're all about 55 cents each with a minimum order of 10.
>
> They're very small, so I wouldn't recommend using them unless you're comfortable with your soldering skills.
> You want them in physical contact with the transistors, so I carefully soldered very thin & VERY flexible leads to each side of the tempco.
> Depending on your application, you then solder the ends of the leads to wherever they go in your circuit and carefully arrange them in contact with the appropriate transistors. I used a little gob of heatsink compound and held it all together with a very small ty-wrap.
>
> I actually wasn't too thrilled with this method, but it seemed to work ok.
>
> This has all gotten me to think about having a batch of miniature pcbs made.- with pads to mount one or two of these tiny tempcos and holes for wire leads. These could be so small, that I think they'd be cost effective, and maybe solve this tempco problem for a lot of us...
>
> Does any of this make sense?
>
> Damion
>
> On Dec 16, 2004, at 1:44 PM, Laxt57 at aol.com wrote:
>
>      Hi Damion
>       Hey tell me about the surface mount tempcos. By that
>      I mean where do you get them from and how to mount
>      them?
>       I hope to hear from Ray/Jay/Jason,but have not yet.
>      Jeri
>
>
> damion romero
> damion at poweracoustics.org
> http://poweracoustics.org
> http://p-tapes.com