[sdiy] DETERMINING FLOATING RESISTOR RANGE OF OTA??

[Dan Snazelle]

Well if the floating resistor doesnt work
I might try a vactrol 

Bummer


Thanks


On Dec 1, 2010, at 3:14 PM, <lanterma at ece.gatech.edu> wrote:

> 
> On Dec 1, 2010, at 9:05 AM, dan snazelle wrote:
> 
>> Looking at the FLOATING RESISTOR in the lm13700/lm13600 datasheet, I am trying to figure out how one gets the right values when building this to specifiy a range of resistance
>> 
>> i am building a circuit which requires a variable resistance over the range of 1k-3k
> 
> A while back I think some of my students tried that; it didn't seem to work terribly well but I can't recall the whys or hows. I think they dropped it in favor of using a vactrol.
> 
> - Aaron
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