Tube DIY Asylum

• Re: Vishay vt52-55 resistors in a tube amp - Goneill 17:41:33 04/28/07 (0)
  In Reply to: Vishay vt52-55 resistors in a tube amp posted by jarthel on April 28, 2007 at 01:53:51:

  I know everyone loves Vishay, but I'm afraid I found them (VT52) unlistenable in my amp. They were excessively bright and the mid range had a thin metallic feel that was really unpleasant. It sounded like a bad solid state amp. I left them in for a few days hoping it would burn off but it didn't.

  The RikenOhms were better but but it was when I replaced them with Audio Note tantalums that I got the best sound.
  
  

  • My amp work   (Open in New Window)

  
  

  ---
• Re: Vishay vt52-55 resistors in a tube amp - TimFox 06:20:25 04/28/07 (0)
  In Reply to: Vishay vt52-55 resistors in a tube amp posted by jarthel on April 28, 2007 at 01:53:51:

  Back in the '70s, when Vishay made only ultra-precision resistors and had not yet bought other component vendors, they issued an interesting application note. They used a Sound Technology THD meter to measure linearity of their resistors, compared with other types, and got spectacularly low distortion. They found this to be a good QA method, specifically to look for bad lead welds that increased the distortion dramatically. This question of interface between lead wires and resistor element can be critical to resistor linearity.
  
  

  ---
• Nothing better! If you can afford them... (nt) - Allen Wright 04:27:10 04/28/07 (2)
  In Reply to: Vishay vt52-55 resistors in a tube amp posted by jarthel on April 28, 2007 at 01:53:51:

  
  
  

  ---

  • Or find them, for that matter (nt) - arend-jan 05:08:55 04/28/07 (1)
    In Reply to: Nothing better! If you can afford them... (nt) posted by Allen Wright on April 28, 2007 at 04:27:10:

    
    
    

    ---

    • pcx sells them. not cheap of course :) (nt) - jarthel 16:37:20 04/29/07 (0)
      In Reply to: Or find them, for that matter (nt) posted by arend-jan on April 28, 2007 at 05:08:55:

      .
      
      

      ---

This post is made possible by the generous support of people like you and our sponsors:

Schiit Audio

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2025, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---