Well another stroll down memory lane. Radio Shack sweep tubes were not as
heavy as the Sylvania or RCA's of the time period. It was easy to smoke them
under tune up or long winded qso conditions, especially if you ran AM with the
drive turned up too high on many of those old rigs. They got wise in a hurry
and stopped replacing tubes for hams. Ha ha ha Cannot say I could blame them.
Around 1980 Electronics Supply in Kansas City still had most of these tubes,
even the ruggidized version if available. Within a few years though, alas, it
all changed and sweep was swept away. Goodbye to an era. So long muscle cars,
etc.
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