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RE: What is a "pinched waist" tube.




I once won an auction on eBay for a NIB NOS Amperex 6922 for $40. Turned out to be a ca. 1959 "pinched waist".


"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln


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  • RE: What is a "pinched waist" tube. - JKT 10/5/1621:13:37 10/5/16 (0)

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