Originally posted by Justin Thomas
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Instead of making hand-held carbon arc lamps, I found out another hard way. Which I'm sure I mentioned some years ago. Let's review:
Late 70's I worked for Fairchild Semiconductor, and became the "house expert" on ion implanters. Part of the machines at that time was a set of electrostatic plates, used to "steer" the ion beam in such a way to "paint" the surface of each silicon wafer target. There was an amp of a sort, that used half a dozen big vacuum tubes, each with a top cap & hi voltage wire leading to it, with a 6000V power supply. Probably would make a suitable amp to drive electrostatic speaker panels. Anyway, we had connection problems constantly with the tube sockets & top cap electrodes. The "solution" was to poke at them with whatever was at hand, usually a screwdriver with a 10,000V rated handle. One fine day I poked with a pencil, and landed on the floor about 25 feet away. "Don't do that again!" I thought to myself, a pencil makes for a dangerous probe, there's a rod of conductive carbon running down the center. Use a swizzle stick, chopstick, or some other definitely non conductive item. Yes the above is true, signed Leo "Lucky To Be Alive" Gnardo.
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