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Old 11-12-2001, 11:36 PM
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RunningTooHot RunningTooHot is offline
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Join Date: Aug 2000
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I just read your post after (slowly, painfully slowly ) typing out the last response.

You can't argue with success -- if it works properly in both heating and cooling modes, then pat yourself on the back & leave your wallet in your pocket!

By rotating the temperature wheel on the shaft you are rebalancing the resistance chain comprised of the two thermistors & the potentiometer. As you may already know, the amplifier reads this resistance and supplies voltage to drive the servo until another potentiometer within the servo matches the resistance; this is how the servo ‘ knows’ where to stop within its internal travel. By adjusting the wheel, you may be making up for deficiencies elsewhere -- but like I said if it works, W. T. H.!


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