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Unread 19-03-2008, 01:30
Racer26 Racer26 is offline
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Re: picture/diagram of controllable single/double

That works too, under the current rules. The system I laid out above, and personally devised in ~2004 (maybe not the first to do so, but I did it on my own) works with exclusively KOP parts, and I would argue can be made better (with addition of a couple other components) than a center off valve, as far as stability/accuracy goes.