Transcription of DATE CODES FOR RCA-MADE TUBES Ludwell Sibley
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DATE CODES FOR RCA-MADE TUBES Ludwell Sibley
DATE CODES FOR RCA-MADE TUBES . Ludwell Sibley There is a sort of fascination with the date CODES that are found on TUBES . The classic information, on early RCA TUBES in particular, is Bro. Patrick Dowd's writeup*. This 13-page brochure goes into (necessarily) exhaustive detail on prewar product. Bits of other "dating data" have surfaced in the radiocollector press and are available in, for example, Tube Lore. Now further - postwar - information has become available 4- via the Dowd-AWA-RCA Harrison archive, and it's time to get it into print. Before going farther, it is appropriate to point out that there were actually three ver- sions of date CODES : k Date of manufacture.
DATE CODES FOR RCA-MADE TUBES Ludwell Sibley There is a sort of fascination with the date codes that are found on tubes.The classic information, on early RCA tubes in particular, is Bro. Patrick Dowd's writeup*.
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