Tube Collectors Associationtubecollectors.org/eimac/archives/8873(73).pdffor a given tp is shown;...
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Tube Collectors Associationtubecollectors.org/eimac/archives/8873(73).pdffor a given tp is shown; maximum Du may then be derived from the relationship: 0.350 = ib PULSE DERATING CHART,