Tubes Asylum

• RE: testing kt120 on Jackson 648a - Alpha Al 18:57:28 03/16/25 (0)
  In Reply to: RE: testing kt120 on Jackson 648a posted by pascal on March 15, 2025 at 10:30:30

  Jackson testers have a transformer that sags under the heavy load of the KT120 heater.
  
  They're better foe testing preamp tubes.
  
  If you do test high-power tubes on a Jackson, be sure to set the line adjust with the tube in the tester and already heated.
  
  
  

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• RE: testing kt120 on Jackson 648a - Tre' 06:40:14 03/16/25 (0)
  In Reply to: RE: testing kt120 on Jackson 648a posted by pascal on March 15, 2025 at 10:30:30

  I bet this guy knows.
  
  Tre'
  Have Fun and Enjoy the Music
  "Still Working the Problem"
  

  • https://tubesound.com/rebuild-calibration-of-jackson-648a/   (Open in New Window)

  
  

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