These are interesting to see but framing it in terms of people helping to identify them seems kind of gimmicky. A box with dials and terminals on it could be almost anything and that's all that a lot of these pictures show. If they also posted pictures of the circuits inside then they would have a lot more of a chance of someone actually figuring it out.
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These are interesting to see but framing it in terms of people helping to identify them seems kind of gimmicky. A box with dials and terminals on it could be almost anything and that's all that a lot of these pictures show. If they also posted pictures of the circuits inside then they would have a lot more of a chance of someone actually figuring it out.
Unless you happen to be retired from NIST and remember that particular device.