Re: [APML] Chamber Controller Schematic

["Mike Connors" <micon@starband.net>]

Chris,

 

Thanks for posting.

 

Mike Connors

----- Original Message -----

From: Chris Schur

To: APML

Sent: Thursday, November 21, 2002 4:44 PM

Subject: [APML] Chamber Controller Schematic

Here is a sketch of my Lumicon model 300 hyper kit temp chamber controller I built for less than $25 in radio shack parts.  The key element is the thermistor, a temperture sensitive resistor available at Digikey.com for example or Newark that makes it all work.  Since I built this thing in the mid 80s, Im not sure you can still get the N chanel mosfet listed, but most any will work.

 

Any electronics technician could get this circuit working in no time.  The schematic is at:

 

http://www.psiaz.com/Schur/astro/images/post/controller1.jpg

 

Its a bit crude, but without actually disecting the box, I cant see the pinouts on some of the parts.

 

Chris

Astro:  http://www.psiaz.com/schur/astro/index.html