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Need Info: Instrument from Rubicon Company in Philadelphia

Discussion in 'Electronic Basics' started by [email protected], Jan 3, 2005.

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  1. Guest

    I recently picked up this strange thing at a thrift shop. Trying to
    find out what it is. I know it isn't a radio, but figure some of you
    that have been around the block may know what it was.

    It has Photocells written under the top left buttons, looks like
    contacts for a battery. GA under the other top contacts.

    My guess it is from the 1930s-1950s

    Pictures can be found at Http://

    Anything you can tell me on what the heck it is, I much appreciate it.
    You can reach me at

    Thanks much!
  2. Lightmeter? Bridge circuit, provisions for an external mirror galvo,

    Doesn't it have a nameplate? Pics are pretty fuzzy and it is
    hard to read the legends. Try placing the thing upside down
    on a scanner.
  3. Jim Thompson

    Jim Thompson Guest

    looks like an old "standard cell", but the "photocell" labeling is

    ...Jim Thompson
  4. Jerry G.

    Jerry G. Guest

    What does the upper label on the corner say?

    This looks like it was made in the early 1930's to the mid 1940's. If
    I had more views of it, especialy clearly (not out of fucus) showing me
    the labels on everything, including rear views, I may be able to
    identify it. I am very familiar with many of the types of test gear and
    radio equipment from that era.

    Jerry G.
  5. M-Tech

    M-Tech Guest

    Resistance/ohm meter standard of some type would be my guess.

  6. john jardine

    john jardine Guest

    The 2 knobs fitted on it are UK military, circa 1939-1947. Maybe some
    lend-lease item?.
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