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Recent content by TwnB

  1. TwnB

    low speed control

    How is the gearbox connected in the system? You say it is a 1:200 gear ratio. Does this mean for every 1 RPM of the motor the output shaft of the gear box rotates 200 times? SO at 0.1 motor RPM the output of the gearbox is 20 RPM. If so then maybe it is possible to put the encoder on the...
  2. TwnB

    PIC Chip Programming

    This is funny, I too worked with the UYK 20 but in a different way. My first job out of school was working on design of the UHG 60 which was the data backup system for the UYK 20 utilizing quarter inch tape cartridges. I remember all the manual data input from the front panel via toggle...
  3. TwnB

    Fake UK Plug

    Another two cents. Every Chinese/Taiwanese company I have worked with (hundreds) want to improve their quality and increase their business. Chinese are usually in it for the long haul and do not give up easily. I have rarely seen a company in Asia go bankrupt. They simply do not know how to...
  4. TwnB

    Fake UK Plug

    You need to attack the source of the problem. I have been living in Asia for 10 years and have spent many fortnight beating my head against the wall trying to get things like this resolved. The problem you have stems from purchasing. The purchasing dept. is usually beat up by management to lower...
  5. TwnB

    Mobile/Rentable UPS systems

    Check this site: http://www.caterpillar.com/services/shared/cat_rental/cat_rental.html Hopefully they have what you need. Good luck.
  6. TwnB

    Driving seat vibrations while driving a bus

    Hi McCoy, Check out this web site. These guys are experts in this field. Hope it helps. http://www.mrfluid.com
  7. TwnB

    Consumer Electronics Refurbisment

    Rich, If you have 20 - 30 percent of your units returned because of manufacturing defects I think you have bigger problems!
  8. TwnB

    delay cutoff circuits....

    Hi Michael, I don't know if this will help but I have used an optoisolator in the past to separate the relay coil from the control circuit. See tutorial on relay drive designs and a little history on relays http://www.uoguelph.ca/~antoon/gadgets/relays/relays.html
  9. TwnB

    magneic braking for bicycle

    I am an engineer who designs exercise equipment in Taiwan (I am an American). Lewish was correct in pointing out that the eddt current brake is most often as a resistance mechanism. I would not suggest a particle brake as it takes too much current to operate. jbartos had an interesting idea...

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