With both control and screen grids using frame-grid construction, a new pentode boasts performance features that far surpass those available in conventional pentodes. Compared with some of the better ...
A plastic 8-pin base with center post, metal shell, top contact, T-shaped envelope. Paper label reads: " Tung-Sol Lamp Works Inc. / Newark, N.J. / Engineering Sample / Type 6B8GT / Date 5/22/40"; ...
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