Summary
Used as a detector and amplifier in radio receivers. It has a 4 volt indirectly heated cathode.
One of the first indirectly heated Alternating Current tubes produced by Philips; it was introduced in 1928.
It is sectioned and the bulb removed for display purposes. It is displayed with a complete valve on a wooden base.
Physical Description
Five pin American style base. The valve has been sectioned and the bulb has been removed for display purposes and the tube is mounted on a stand with another complete valve (ST 021542.1). The stand has an exhibition label attached.
More Information
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Acquisition Information
Purchase
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Overall Dimensions
84 mm (Length), 34 mm (Outside Diameter)
On a stand with ST 021542.1
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References
[Book] Stewart, Finlayson (Fin). 1995. Illustrated History of Philips Radio Valves to 1935.
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