Summary
Beam tetrode designed for use in the output stage of radios and other apparatus requiring about 5 watts of audio. 6.3 V indirectly heated cathode.
Physical Description
Shouldered glass bulb with octal base with 7 pins present. Mounted on display block with a sectioned example of the same type (ST 22637).
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Arthur J. Veall Pty Ltd, 24 Mar 1944
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Manufacturer
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Inscriptions
Bas: PHILIPS/"Miniwatt"/MADE IN AUSTRALIA/D78/(2 over 4 Excise mark) Display block: Brief Description
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Brand Names
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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
115 mm (Length), 44 mm (Outside Diameter)
Not including display block.
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Keywords
