Summary
A tetrode in a holder, manufactured by Marconi Osram in England, introduced in 1927.
Tetrode (or screen grid tube) is used in high frequency amplification. Feed back from anode to control grid was virtually eliminated by uising a screen grid between them.
A 6 volt dull emitter filament operating with a current of 0.25 amp.
Physical Description
A double ended, double base tube with three pins at one end and two at the other.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Australian Wireless Valve Co (AWV Co), 23 Feb 1972
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Manufacturer
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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
30 mm (Length), 76 mm (Width), 132 mm (Height)
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References
Diagram in Tyne "Saga of Vacuum Tube", page 385.
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