[NJARC] Happy Birthday Vacuum Tube:

Yardleyite at aol.com Yardleyite at aol.com
Tue Nov 16 12:06:53 EST 2004


Hello All,
            On  November 16, 1904 Fleming patented the Fleming valve. The 
vacuum tube is 100  years old today! 
               Thermionically Yours,
                                             Joe  Cro N3IBX   


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