Summary
Mercury vapour rectifier, made by Philips in Holland in the early 1930s. Used for high power supply in transmitters.
Donated by 3KZ Radio Station - 64 Elizabeth Street, Melbourne in 1936. 3KZ was first licensed to broadcast on 8 December 1930.
The valve is sectioned.
Physical Description
Sectioned bulb mounted on a display block with a similar valve ST 21490. Most of bulb is missing. Large Edison screw base. Top cap with bakelite and knurled brass terminal, mounted on vertical stand in approximately correct position
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from 3KZ Radio Station, 12 Aug 1936
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Manufacturer
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Inscriptions
No inscription.
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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
190 mm (Width), 100 mm (Depth), 320 mm (Height)
Overall dimensions of display. Valve is in two parts and thus too complicated to measure.
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