Summary
General purpose triode manufactured in the United States of America.
In the 1920s, it would have been the most common electronic valve in the United States of America. It was used in most radios as an amplifier or detector. The brass base and top exhaust tip indicate an early manufacturing date.
Physical Description
Brass base with four short pins in a ceramic insert. Fully silvered glass bulb with exhaust tip on top.
More Information
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Collection Names
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Collecting Areas
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Manufactured For
Radiotron (RCA), United States of America, circa 1923
Manfactured by General Electric for RCA -
Inscriptions
Torn RCA sticker on bulb. On the base odf vacuum tube: RADIOTRON MODEL UV 201 A On other side of base is a hardly legible licence notice. This item is mounted on the same display base as ST 15930.2 The typewritten display label reads: R.C.A. Radiotron. Directly heated cathode, 5 V, 0.25 amps. Amplification factor 8 Plate resistance 10,000. This valve was widely used in its day. Base UV. Was also extensively used with the UX type base. 15486 15930
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Classification
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Type of item
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Overall Dimensions
100 mm (Length), 35 mm (Outside Diameter)
