Re: Curve Tracer Test Temperature, Was Wanted: 7CT1N Curve Tracer Plug-In


Don Black <donald_black@...>
 

Hi David, do you have a link to the circuit using the LM389 please, I'd like to see how it's used.

Thanks, Don Black.

On 23-Mar-13 4:21 AM, David wrote:
 

On Fri, 22 Mar 2013 09:41:55 -0700, Jon Kirwan
<jonk@...> wrote:



I remember one clever log/antilog amplifier that used the National
LM389 to implement the above temperature regulation scheme. It was
amazingly cost effective since no temperature compensation was needed.
I would still be using it if the LM389 was not discontinued.


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