[Lowfer] Temp control...

Bill Ashlock [email protected]
Wed, 24 Sep 2003 22:39:30 -0400


From Kurt:
>Well, I think the oscillator should stay fairly warm, maybe around 60 or 70
>degrees.

Seems reasonable. Were you thinking about a simple series connection of a 
themistor to a heater?  I can see how that would yeild an oscillating 
temperature. I was first thinking about a contol loop design using and an OP 
amp to drive the heater. That could be designed to be stable because of 
available loop gain, and phase shifting, to overcome the time lag in the 
thermistor.

Bill A

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