Reg Edwards wrote:
Watch this space for another thrilling episode of the long-running,
nerve-tingling mystery story "The Case of the Missing Third Wire".

Reg, you have a black box in the middle of a transmission line with
a high SWR. You measure the current into the box and current out of
the box. You measure 1 amp at 0 degrees going in and 1 amp at 180 degrees
going out. This means that both currents are flowing into the box at
the same time. There is no third wire. What's in the box?
--
73, Cecil http://www.qsl.net/w5dxp



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