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30" That was the biggest they made at the time, 1950-51. It was a 30BP4 & whoever lands that set better not play it too much. Sez here that DuMont "soon encountered cathode life problems because getters could be used only in the neck due to the unaluminised screen." Rotsa ruck tryin' to find one of them babies 55 years down the road. Cripes, we have enuff trouble w/7JP4s-& they were made by the bushel! -Sandy G.
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