The Type 4 is a bolometer, a device for measuring small levels of power. We also have the Type 7 and lack details for both.The active component is the tiny bead at the head.The side bars. We have no details of their function.A closer view of the active bead. The horizontal wire is probably a support, but it could be that the horizontal rods form a dipole and the incident radiation causes a change of resistance in the bead. The bead would then be connected in a bridge arrangement.The balloon envelope is 64 mm in diameter, and excluding the IO base pins is 140 mm tall.Reference: Observation. |
Updated July 14, 2014.
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