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1P39Sensibly equivalent¶ to:CE29 IP39
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The 1P39 cold cathode photocell has a semi-circular cathode and a rod anode. RCA describe the 1P39 as having a non-hygroscopic base for use in high humidity conditions. Electrically it is like the 929.The wide glass tube envelope is 30 mm in diameter and, excluding the IO base pins, is 60 mm tall.Reference: Data-sheet. Type 1P39 was first introduced in 1946. See also 1946 adverts. |
Absolute Maximum Operating Conditions¶
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Updated February 15, 2013.
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