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Re: gEDA-user: translucent tracks in PCB-head!

yamazakir2 wrote:

> why do you have a through hole ic

These are TDA2030 that drive the peltier -- These  are reliable, powerful 
and and cheap. To tap their power, they need to be screwed to a sizable cooler. 
15 W heat cannot be easily dissipated into a copper polygon plane.  

---<)kaimartin(>---
-- 
Kai-Martin Knaak                                  tel: +49-511-762-2895
Universität Hannover, Inst. für Quantenoptik      fax: +49-511-762-2211	
Welfengarten 1, 30167 Hannover           http://www.iqo.uni-hannover.de
GPG key:    http://pgp.mit.edu:11371/pks/lookup?search=Knaak+kmk&op=get



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