Summary
Output triode with 2.5 V directly heated cathode. Equivalent American type 45. Manufactured by Philips, Holland.
Physical Description
Conical bulb with 4 pin UX style brown Bakelite base and no top cap.
More Information
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Collecting Areas
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Manufacturer
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Inscriptions
On bulb: " MADE IN HOLLAND / PHILIPS / F203 / 2,5V MINIWATT 250V / (.111.) " On white sticker on base: "F203"
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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
135 mm (Height), 50 mm (Outside Diameter)
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Keywords