• 572b tubes / 5 Links - Page 1 - The DXZone Amateur-Radio Guide

    www.dxzone.com/tag-572b-tubes Radio Equipment: HF Amplifiers: Ameritron AL-811. Ameritron AL-811H tube selection - This article examines the performance of the Ameritron AL-811H amplifier with the ...
  • Radio Equipment/HF Amplifiers/Ameritron AL-811

    www.dxzone.com/catalog/Radio_Equipment/HF_Amplifiers/Ameritron_AL-811 The DXZone.com list in Radio Equipment/HF Amplifiers/Ameritron AL-811 a curation of 11 useful ... 811H amplifier with the supplied 811A tubes and with 572B ...
  • Ameritron AL-811H tube selection : resource detail

    www.dxzone.com/dx25170/ameritron-al-811h-tube-selection.html this article examines the performance of the ameritron al 811h amplifier with the supplied 811a tubes and with 572b tubes and details a ... Ameritron AL-811 ...
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  • Arcing or Gassy 572B Tube by dxzone.com

    www.dxzone.com/cgi-bin/dir/jump2.cgi Arcing or Gassy 572B Tubes . ... For many years, I tried to convince manufacturers of 811 and 572 tubes to use an additional grid wire to the empty pin, ...