SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream.

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ SET Asylum ]

---

[ Alert Moderator ]

---

RE: Sounds like you had a grounding glitch; loose connection...

Posted by akolegov (A) on August 25, 2014 at 02:51:11

In Reply to: Sounds like you had a grounding glitch; loose connection... posted by Interstage Tranny on August 24, 2014 at 18:23:40:

Follow-up:

I replaced the GE 6550 tubes with the stock KT-88-98 tubes (as thought that one of the GE tubes might be the culprit).

Nope. There was the same buzz, and I started to think about faulty caps or resistors, but decided to replace vintage Sylvania VT-231 tubes with the stock Chinese tubes, and it was OK.

So, one of Sylvania VT-231 tubes was to blame.
It is interesting that I purchased them as NOS from a reputable dealer and barely used them. Is it possible that a tube may spontaneously loos vacuum? I don't have a tester to check it.

Now the amp sounds nice (warm, moderately colored and consistent) but it has lost some magic and subtle detail that were present with vinatge tubes.
Will try the GE6550 tubes again.

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

The Cable Cooker

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2024, Audio Asylum, all rights reserved ]

---

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

---