That is a multimeter. The symbols appear to be V-, V~ and an Omega, for DC volts, AC volts, and Ohms. Notice the probe sticking out the top of the thing. It looks like one that was fairly common many years ago, that I think was HP's, in which case the display would be LED's. I don't understand the slide switch with the walking man symbol, or the long slide switch on the handle. Ah, there it is, I found it:
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Nice job. And, BTW, as I suggested it came out in 1973, not in the Sixties. Here's a link to an article about it in CQ Magazine. By the way, the "walking man" switch inverts the display so you don't have to try and read it upside down.
Last edited by NQ6U; 01-05-2014 at 01:15 PM.
All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.
Last edited by N2NH; 01-05-2014 at 08:27 PM.
“The basic tool for the manipulation of reality is the manipulation of words. If you can control the meaning of words, you can control the people who must use the words."
--Philip K. Dick