On 22/05/2015 19:18, wrote:
On Friday, 22 May 2015 17:26:41 UTC+1, Andy Burns wrote:
nt wrote:
Andrew Mawson wrote:
rick wrote:

https://www.dropbox.com/s/rewcotpvkd...rcuit.jpg?dl=0

Some good old classic components in that circuit

I can't see anything on that page

It's the image from this article

http://electroschematics.com/4788/

thanks you two.

That circuit contains no feedback, making it bangbang operation rather than proportional.

Using transistors as temp sensors is cheaper.


NT

wrong cct .... corrected http://tinyurl.com/nanzf8d


If you have issues with drop box ... its the Thermistor version he
http://www.bit-tech.net/modding/2001...n_controller/1