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vacuum tube amplifier

Abstract: TT22 22 TT21 TT-22 tube chronotrons vacuum tube "vacuum tube" TT15 vacuum tube applications TT22
Text: File C atalo g : Electron Tube Products T T - 8 * , TT-9, TT-13 O endi/r Types 1t t - i 5 , t t - 1 7 , t t - i 8 Section: G a s and Special Tubes ( TT-20, TT-21, TT-22 CHRONOTRONS DESCRIPTION These tubes a re d esig n ed for use in electronic control circuits to p ro vid e a time d e la y in a m anner sim ilar to an