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In Reply to: RE: Analog computers rely on negative feedback posted by andy_c on September 22, 2014 at 21:21:11
In the mid 1970's when microprocessors weren't powerful enough and mini computers were too costly in some applications, we used op-amps for computational building blocks.
Analog signals from various transducers, after being conditioned by instrumentation amplifiers, were input into specialized custom designed 'analog computers' to return results in realtime. The biggest problems were trimming input offset to zero and strategically placed temperature compensation components to counter drift. And yes, we used multi-turn pots and gear reduction dials along with large analog meters to display values. ;-)
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(nt)
my blog: http://carsmusicandnature.blogspot.com/
I got started very young. Built my first regenerative shortwave receiver in 5th grade, advanced class ham radio license in jr. H.S., worked part time as an Engineering Lab Tech while in H.S. And my latest pic in white t-shirt is a good dozen years old.... if that's the one you're referring to. ;-)
You did start young. I wonder how many kids are following the radio route to being techies or audiophiles these days. What are the routes that tech inclined kids follow now?
I was referring the the guy in your signature line with the Beats phones. :-}
my blog: http://carsmusicandnature.blogspot.com/
What are the routes that tech inclined kids follow now?
Maybe they dabble in programming and creating apps for smartphones, or blockbuster video games ?? The video game industry is bigger than the movies and music industry.
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