Summary
Large audio output pentode, a single valve was capable of producing up to 12 watts of output.
4 volt directly heated cathode.
Physical Description
Conical globe style glass bulb with American type 5 pin (UY) base. A very robust pentode structure is visible inside. The valve is packaged in its original cardboard carton. The valve is held in an inner box suspended by a number of strips of elastic fabric which have deteriorated but still keep the inner box centred. A descriptive leaflet with some data was packed in the carton with the valve.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Donation from Mr Alexander H. Mackie, 10 Dec 1968
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Manufacturer
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Inscriptions
On bulb: PHILIPS/F443/Made in Holland On 4 sides of box: Picture of a valve and a stylised radio aerial with text: PHILIPS/RADIO/MINIWATT On one end flap of box: F443 (stencilled)
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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
180 mm (Length), 68 mm (Outside Diameter)
Dimensions of box (mm): Length: 230, Width: 150, Depth: 150
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Keywords