Summary
Triode-hexode used as a frequency changer in superheterodyne radio receivers. Used in the post-war years up to about 1952.
Equivalent to valve types ECH3 and 6K8G.
Manufacturer: Philips, Holland.
6.3 V indirectly heated cathode.
Physical Description
Small shouldered bulb with octal base and top cap. Bulb has been sprayed with red metallic screening paint.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from G. H. Williams, 12 Jun 1973
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Manufacturer
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Inscriptions
Bulb: ECH33/Made in Holland Base: Minwatt
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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
110 mm (Length), 35 mm (Outside Diameter)
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Keywords