[sdiy] SMD Tempco Plea for Help

Oren Leavitt oleavitt at ix.netcom.com
Tue Apr 13 00:08:28 CEST 2004


Try Jorgen Berfors' trick:

http://www.idg.se/personal/bergfors/bergfotron/vco.htm
Scroll down a bit, you'll see it.

You can make up a bunch of these on 8 pin DIP headers and have them ready to plug in to your projects.

Oren

-----Original Message-----
From: metamatic at webtv.net
Sent: Apr 12, 2004 2:18 PM
To: synth-diy at dropmix.xs4all.nl
Subject: [sdiy] SMD Tempco Plea for Help

 Hello everyone,

 I ordered some of the Panasonic 805 surface mount tempco from Digi-Key,
and finally received them today. For just over $21, I bought 50 1K
3300ppm tempcos. I had grand dreams of tempcoing every expo converter
I've ever built. Forget just VCOs, I'm tempcoing filters, VCAs,
everything!

So I open the package, and...

 Sweet merciful crap, these things are small!

 I remember a couple of list members mentioning that they've used the
SMD tempcos, affixing them to 2SC1583s and what have you. What type of
adhesive would be best to stick them on the transistor pair?
Cyanoacrylate emits some nasty fumes when heated (I've learned this the
hard way), so I've just about ruled that out. I'm thinking I might use
wire-wrapping wire to solder to the terminals on the tempco... good
idea? Better suggestions?

 Thanks for any suggestions!

Richard Hess

metamatic at webtv.net






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