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 Technic / 14565
  Re: New 3-Input Multi-function Pneumatic Logic Gate
 
(...) Mark, Aren't Reversor R1 and Reversor R4 redundant? R1 can reverse the A input, which drives a piston which controls a switch, who's output is reversed by R4. I see no reason for the piston and switch between R1 and R4, unless you are just (...) (19 years ago, 6-Sep-05, to lugnet.technic)
 
  Re: New 3-Input Multi-function Pneumatic Logic Gate
 
(...) Yes, R1 and R4 are redundant as shown in the table notes :-) The idea was to start with A, B and C all being either differential inputs or switch positions. The use of a switch for A means that its input is buffered to the gate output, (...) (19 years ago, 6-Sep-05, to lugnet.technic)

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