Summary
Triode, used as a Class A amplifier, manufactured by A. W. A., Sydney, Australia. This valve was electrically identical to the RCA UV199 and UX199, the only difference being that it was fitted with an English 4 pin base. A.W.A. may have manufactured these to provide an alternative to English and European valves with this base. It is also possible that these tubes may have been made by RCA with the bases being fitted in Australia. These valves were shown in the AWA Radio Guide for 1928 and were not made for very long.
Technical details:
Dull emitter, Filament voltage 3.0, current 60 mA. Directly heated cathode. Maximum plate voltage 90 volts.
Physical Description
Tubular glass bulb with European style 4 pin base. Mounted on display block with a two UV199s, one sectioned and one complete..
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Mr John Askew, 15 Mar 1928
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Manufacturer
Australian Wireless Valve Co (AWV Co), Sydney, Greater Sydney, New South Wales, Australia, circa 1928
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Inscriptions
Bulb: (paper label)GENUINE/AWA/33 Base: (hot stamped) AWA/33 Display block: Description and name of donor.
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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
96 mm (Length), 28 mm (Outside Diameter)
Dimensions not including display blck
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References
A.W.A. Radio Guide 1928
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Keywords
