We had an analog computer at the Sequoyah Nuclear plant that simulated
reactor core dynamics.  It had several banks of Nixie tube readouts,
several strip chart recorders, probably 75 precision 10-turn pots with
vernier dials and a big patch board.  The patch board allowed different
sections to be patched together - programmed - for different
simulations.  It was a quick-release affair so that several could be
kept pre-programmed.

There are no sensors.  The unit is programmed with a set of initial
conditions, on this unit using punch cards, and then started.  The only
things missing from these units are the patch cables - and the thick
instruction manual on how to set them up.

What is interesting is that Sequoyah now has a mainframe dedicated to
calculating core dynamics - what a desktop analog computer could do faster.

John


On 02/03/2014 09:55 AM, Nick wrote:
> Fantastic... boat anchors!
> 
> What on Earth would you do with them? They're missing all the external 
> sensors etc.
> 
> Nick
> 

-- 
John DeArmond
Tellico Plains, Occupied TN
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