Summary
TB2/250. triode, transmitting. Made by Philips in Holland. Filament 11 volts at 2.5 amps; anode 2000 volts at 100 ma; full rating to 20 mhz; mutual conductance 6000; amplification factor 25. Equivalent to TC2/250.
Physical Description
Cylindrical bulb with tapered ends. Plated metal base with one flat and two round pins. Plated top cap with threaded terminal with nut missing. Mounted on display block.
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
Bulb: PHILIPS/TB 2-250/6702/MADE IN HOLLAND Text on display label.
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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
405 mm (Height), 110 mm (Outside Diameter)
Dimensions of valve, excluding display block.
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