Summary
"Magic Eye" tuning indicator used in domestic radios in the 1950s. The EM34 was unusual in that it had a dual display with two sensitivities to handle both weak and strong signals.
"Magic Eye" indicators provided a circular fluorescent display with a dark segment that varied in width in response to the automatic volume control (AVC) voltage.
Manufactured by Mullard Electronic Products Ltd., England.
6.3 V indirectly heated cathode.
Physical Description
Tubular bulb on octal base. Red paint on bulb, flaking off.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Unknown Source, 09 Apr 1972
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Manufacturer
Mullard Electronic Products Ltd.,, England, Great Britain, 1950-1959
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Inscriptions
Bulb: (Mullard logo)/EM34/(BVA logo)
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Classification
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Category
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Discipline
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Type of item
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Overall Dimensions
73 mm (Length), 33 mm (Outside Diameter)
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Keywords