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 Robotics / 3779
  Re: Sensors
 
(...) I ordered a "sensor & motor" pack from Gleason Research, and it came with 4 touch switches. Two of these were simply keys from a computer keyboard. Looks like they will work just fine. So old computers may be a source for a large number of (...) (26 years ago, 16-Feb-99, to lugnet.robotics)
 
  Re: Sensors
 
(...) Beware. Little to no keybards actually include separate switches. Most keyboards available today use two sheets of plastic with electrical pathways on them, whioch are connected beneath the keys when pressed. Older ones often have a PCB with (...) (26 years ago, 16-Feb-99, to lugnet.robotics)
 
  Re: Sensors
 
(...) Old PCs with very klicky keyboards generally used ALPS-brand key switches. IBM keyboards are the classic brand here, but I've had NEC keyboards of the same design, and the old Northgate Omnikeys also used ALPS switches. You are correct though, (...) (26 years ago, 16-Feb-99, to lugnet.robotics)
 
  Re: Sensors
 
(...) Jasper - for newer keyboards this is true - but your probably showing your age here :) Most of the early keyboards were discrete switches (Apple, Dec, IBM) It was after a while that the 'film' switches became available. I've had 1,000s of the (...) (26 years ago, 16-Feb-99, to lugnet.robotics)
 
  Re: Sensors
 
(...) Possibly, but I know about that. I was referring mainly to the types of keyboard commonly seen in dump/second-hand shops today. Because, face it, if you have them already, you know about it, and if you don't have them, that's where you'd go to (...) (26 years ago, 16-Feb-99, to lugnet.robotics)
 
  Re: Sensors
 
(...) Good point, and I had forgotten about those other old keyboards ;) thanks for reminding me. About the bomber/unibomber stuff - I wasn't trying to get you to apologize, but rather was sharing my feelings/memories. Over all as I read your reply (...) (26 years ago, 17-Feb-99, to lugnet.robotics)

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