[AMPS] Care and feeding of power grid tubes

[Mark S Graalman]

   Hi,

  I'd like to get a copy of "care and feeding of power grid tubes" is it
still
available, and if so where can it be found?


                                                 73,  Mark WB8JKR



Mark Graalman
Toledo, Ohio
Callsign: WB8JKR
Member: Society of Telecomunications Engineers
TCBA member # 1399

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