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Recent content by gdb

  1. G

    Can someone help me identify this rectifier?

    If I understand the system and the schematic, the A and C connections (Since the clock advance pulse would coincide with the program advance and the winding coil, and now, after looking at one of the clock wiring diagrams, it has A, B, and C) should pulse 24VDC once per minute, which is what the...
  2. G

    Can someone help me identify this rectifier?

    I also wrote a letter to the IBM archives last week in the hope that they may be able to find some documentation for this model with the options it had. Maybe I will get lucky there.
  3. G

    Can someone help me identify this rectifier?

    Thank you both for the answers! The closest I have come to finding any documentation os from a different model made a few years later, that does not have all of the "add on's" that this one does, but it is a start: http://williamkapp.tripod.com/id43.htm The mounting holes for the original...
  4. G

    Can someone help me identify this rectifier?

    Another component question: Can you guess at that these 4 components are? http://www.flickr.com/photos/93128944@N00/2450070161/in/set-72157604782545718/ There is a screw/bolt through the center, and the ends are stamped with the number 7000. Some sort of coil? [edit to fix the URL]
  5. G

    Can someone help me identify this rectifier?

    Thank you for the information! I will be removing the transformer to get access to the rectifier soon. I will let you know what I find.
  6. G

    Think Fax machine has been used by someone else

    Do you have a cleaning crew, or missing keys? Then again, the call may have been fake too, You should ask them to fax the order back to the fax number on top of the fax and see if it was really from your machine. That may also help ID the original sender ;-)
  7. G

    How to ground STP cat5e cable

    Where did you hear this? If it stays within your house, you should not need to do this. Between buildings is a different matter, and for that, I would use Fiber anyway :-)
  8. G

    ESA ET427E tv - Change Input

    better yet, there is a website fixya.com that should be able to answer the question if you search for ESA ET427E there.
  9. G

    ESA ET427E tv - Change Input

    There is no input button on the front of the tv?
  10. G

    Can someone help me identify this rectifier?

    http://flickr.com/photos/93128944@N00/2450896210/in/set-72157604782545718/ [edit to fix the URL]
  11. G

    Can someone help me identify this rectifier?

    Hi, First, please be gentle with me, as I am a computer geek, not an electronics one ;-) I have just obtained and am trying to restore a 1931 IBM master clock, and am trying to determine what to replace what I believe is a rectifier: Since I am new, I cannot post the link to the photo...
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