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What is this?? Codecs or some sort of Morse code

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Tools and Hardware4489 of 6177Antique Key? Ivory temperature gauge
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Posted 5 years ago


(214 items)

What is this?? Codecs or some sort of Morse code Machine
I found it at the dump and tho it was Worth Pulling it out.

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  1. vetraio50 vetraio50, 5 years ago
    Gambrell, Croydon resistance box. Science lab equipment from a school?
    "A resistance box or resistor substitution box is a unit containing a number of precision resistors connected to panel terminals or contacts so that a desired resistance value can be obtained by withdrawing plugs (as in a post-office bridge) or by setting multicontact switches, which allow any one of various discrete resistances offered by the box to be dialed in. Usually the resistance is accurate to high precision, ranging from laboratory/calibration grade accuracy of 20 parts per million, to field grade at 1%."

  2. Phatbuddha Phatbuddha, 5 years ago
    Thanks for that. It was bugging me for ages.
  3. blunderbuss2 blunderbuss2, 5 years ago
    The case doesn't look like it took resistance to well at some time.
  4. spiritinthesky3 spiritinthesky3, 5 years ago
    Good info, description!

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