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 Robotics / Handy Board / *3014 (-5)
  Polaroid 6500 stuff
 
We're planning to use the new Polaroid 6500 stuff on the Handyboard web page. We intend to use a six volt power source to drive our motors independently of the power source to the Handyboard itself (by cutting the appropriate trace on the board). (...) (27 years ago, 26-Nov-97, to lugnet.robotics.handyboard)
 
  moving
 
i know you've told us a thousand times who to send requests like this to, but i'm a looser who suffers from chronic "outlook is a piece of doggy doo" syndrome... i am moving from coreyfro@deepwell.com to coreyfro@cwws.net and would like to retain (...) (27 years ago, 25-Nov-97, to lugnet.robotics.handyboard)
 
  Re: IR Demodulator Range Finder Hack
 
Try RADIO SHACK. They stock a pocket book range by Forest Mims. One of these is specifically on playing with the 555 timer IC Regards Terry Howsham (27 years ago, 25-Nov-97, to lugnet.robotics.handyboard)
 
  RE: IR Demodulator Range Finder Hack
 
Thanks to David Kott for the addresses, the pdf file is a slightly updated version of the original so it will come in useful. He mentioned that he was using a circuit to modulate the IR transmission from the LEDs by using a NE555 to trigger a (...) (27 years ago, 25-Nov-97, to lugnet.robotics.handyboard)
 
  Replacement for ZTX614 NPN Darlington Transistor
 
I am writing to see if anybody knows of a suitable replacement for the ZTX614 transistor driving the IR transmittion circuit. I can't find any easily available in the UK and was wondering if there are any other NPN Darlington transistors that can (...) (27 years ago, 24-Nov-97, to lugnet.robotics.handyboard)


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