(Left) Recorders and other electronic equipments are mounted side-by-side in 19-inch 

 racks along the south wall. (Center) The punch-tape recorders are used interchangeably 

 and concurrently. They can be connected to a choice of several sensing instrument 

 cables in the recording room. (Right) Fifty-two sensors transmit vertical and horizontal 

 temperature readings to this analog recorder which is also connected to the adjacent 

 punch-tape recorder. 



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