RAYTHEON CK 5703 WA Subminiture Vacuum Tube Microphone Vintage NOS

Description

Nice NOS lot of sub-miniature tubes.  These are untested  but appear very nice.  You dont find them in this bulk packaging very often, so this leads me to feel that these have never been used. These are being sold As-is with no returns offered.  They are being sold as un-tested as well.
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