RCA UV-202 Tube |
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The UV-202 tube was introduced in 1921, and was a larger, more powerful version of the UV-201. It was widely used by amateurs in low-power transmitter applications, as in the following photo of 8BNY's transmitter, circa 1922. Most had brass bases, but the last ones made had Bakelite bases. The UV-202 was superceded by the UV-210 in 1925. Shown below is the Cunningham version, the C-302. | ||