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I think part of the reason may have been a safety device to ensure the HV rectifier could not be active with the HV cage open. It probably was a cost cutting move too but I wonder why all the chassis went to this design, from the cheaper portables to the highest end models.
The key thing is to make sure the tube is plugged in all the way to the socket...if its not in all the way you can get arcing which can lead to flyback destruction. Probably a fuse in the HO cathode would be good too (1/4 amp to .3 amp).
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02-16-2007, 06:10 PM
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