Summary
Two general purpose triodes designed for operation from a 6 volt accumulator or dry batteries. Equivalent to the American 201A except for lower filament current. 6.0 volt directly heated cathode.
Physical Description
Conical glass bulb cut away to show the internal structure of a triode valve with a horizontal electrode structure. American style 4 pin (UX) base. Mounted on a display block. Conical glass bulb with European style 4 pin base. Contained in cardboard carton (probably original). Carton has dark brown text on an orange/yellow background with a stylised radio aerial and a half-tone picture of a typical valve on two opposite faces.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Purchase
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Manufacturer
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Inscriptions
Base: A609 (scratched on) Display block: TRIODE (General Purpose) A609/Philips. Made in Holland/(Brief description and data) Bulb: A609/PHILIPS/Miniwatt/Sold for amateur use only Base: Hand written on paper label: A609 Carton sides: PHILIPS/RADIO/MINIWATT Carton end flap. A609/Cap A/Made in Holland/(handwritten paper label)A609
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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
100 mm (Length), 40 mm (Outside Diameter)
Display block not included
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Overall Dimensions
96 mm (Length), 41 mm (Outside Diameter)
Carton 53 x 53 x 122 mm
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Keywords