Anybody know where to get a "tonebeam" lamp for an AK 480? A few years ago I got a very ambitious person to open the tube,clean the inside, and recharge it with neon. It worked for a while, but the gas bled out over the course of the last couple of years (as he predicted). Can anyone think of a creative way of building a replacement out of modern stuff (LEDs, bar graphs)? thanks......nb

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