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• RE: "I would not believe the level of sonic improvement" and you should not - thetubeguy1954 12:37:06 09/04/21 (3)
  In Reply to: RE: "I would not believe the level of sonic improvement" and you should not posted by Tre' on September 02, 2021 at 06:24:19

  Tre, I honestly don't even know what the B+ voltage is. As I stated before I am not technically proficient!
  
  
  
  Thetubeguy1954 (Tom)
  
  Central Florida Audio Society -- SETriodes Group -- Space Coast Audio Society
  Full-range/Wide-range Drivers --- Front & Back-Loaded Horns --- High Sensitivity Speakers
  
  
  
  

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  • RE: "I would not believe the level of sonic improvement" and you should not - Tre' 19:39:57 09/06/21 (2)
    In Reply to: RE: "I would not believe the level of sonic improvement" and you should not posted by thetubeguy1954 on September 04, 2021 at 12:37:06

    The power supply voltage that feeds the plate load for the audio circuit tube(s) is called the B+. Different rectifier tubes will produce different supply voltages. The same audio circuit operating on different supply voltages will perform differently. The only way to hear the circuit the way the designer intended it to sound is to use the rectifier tube the circuit was designed for.

    Tre'
    Have Fun and Enjoy the Music
    "Still Working the Problem"
    
    

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    Edits: 09/06/21   09/06/21

    • RE: "I would not believe the level of sonic improvement" and you should not - thetubeguy1954 15:52:06 09/11/21 (0)
      In Reply to: RE: "I would not believe the level of sonic improvement" and you should not posted by Tre' on September 06, 2021 at 19:39:57

      Ok, thanks for that Tre! I've learned something new today...
      
      
      
      Thetubeguy1954 (Tom)
      
      Central Florida Audio Society -- SETriodes Group -- Space Coast Audio Society
      Full-range/Wide-range Drivers --- Front & Back-Loaded Horns --- High Sensitivity Speakers
      
      
      
      

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    • You inductive logic ignores the deductive logic that science does not always know what to Test FOR-nT - Cleantimestream 17:06:00 09/08/21 (0)
      In Reply to: RE: "I would not believe the level of sonic improvement" and you should not posted by Tre' on September 06, 2021 at 19:39:57

      !
      The Mind has No Firewall~ U.S. Army War College.
      
      

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• I'm seeing about 30-40 VDC difference between a GZ34 UK Mullard... - Ivan303 15:24:48 09/02/21 (4)
  In Reply to: RE: "I would not believe the level of sonic improvement" and you should not posted by Tre' on September 02, 2021 at 06:24:19

  and a US made 5U4G
  
  
  
  
  
  
  

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  • RE: I'm seeing about 30-40 VDC difference between a GZ34 UK Mullard... - thetubeguy1954 12:41:24 09/04/21 (2)
    In Reply to: RE: I'm seeing about 30-40 VDC difference between a GZ34 UK Mullard... posted by Ivan303 on September 02, 2021 at 15:24:48

    Ivan, are you comparing the Bendix 6106 I had installed vs the Amperex 5AR4 tube that replaced it? Or are you comparing Sophia Electric 274B, others say I should use in place of the Amperex 5AR4 tube?
    
    
    
    Thetubeguy1954 (Tom)
    
    Central Florida Audio Society -- SETriodes Group -- Space Coast Audio Society
    Full-range/Wide-range Drivers --- Front & Back-Loaded Horns --- High Sensitivity Speakers
    
    
    
    

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    • Replaced British made metal base GZ34 with a US made NOS 5U4G. /n - Ivan303 14:22:19 09/04/21 (1)
      In Reply to: RE: I'm seeing about 30-40 VDC difference between a GZ34 UK Mullard... posted by thetubeguy1954 on September 04, 2021 at 12:41:24

      n
      
      
      
      
      

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      • RE: Replaced British made metal base GZ34 with a US made NOS 5U4G. /n - thetubeguy1954 15:53:48 09/11/21 (0)
        In Reply to: RE: Replaced British made metal base GZ34 with a US made NOS 5U4G. /n posted by Ivan303 on September 04, 2021 at 14:22:19

        Thanks for clearing that up for me...
        
        
        
        Thetubeguy1954 (Tom)
        
        Central Florida Audio Society -- SETriodes Group -- Space Coast Audio Society
        Full-range/Wide-range Drivers --- Front & Back-Loaded Horns --- High Sensitivity Speakers
        
        
        
        

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  • RE: I'm seeing about 30-40 VDC difference between a GZ34 UK Mullard... - Tre' 15:28:54 09/02/21 (0)
    In Reply to: RE: I'm seeing about 30-40 VDC difference between a GZ34 UK Mullard... posted by Ivan303 on September 02, 2021 at 15:24:48

    That would change the operating point (and therefore the performance) of a tube stage.
    
    Just saying.
    
    Tre'
    Have Fun and Enjoy the Music
    "Still Working the Problem"
    
    

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