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19TP22 is the designation for the 19 inch electrostaticly converged tube. Only a very few manufacturers built sets using this tube, as the 19V, and 21AX came along soon after the 15G, on which the 19T is based. I believe Sparton may have been another company to build sets with this tube. SAMS has at least two folders on theses types of sets, but I don't know the numbers.
Kevin
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