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PE7B

Sensibly equivalent to:
CV584 GS56
    
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The PE7B photocell from Mazda shows typical photocell construction with a half cylinder cathode presenting a rectangular aperture to the incident radiation and a rod anode located at the centre of the cathode.
The side view shows the circular getter.
Seen from the top of the envelope the semicircular cathode and rod anode are visible. The lettering is also on the dome.
The wide glass tube envelope is 27 mm in diameter and, excluding the B4 base pins, is 77 mm tall.
Reference: Observation. Type PE7B was first introduced in 1929.

 

Updated January 18, 2013.
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