Xcalibur255
Headphoneus Supremus
- Joined
- Feb 4, 2008
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Quote:
Is there a sound difference between VT-231 and no VT-231 tubes ?
At least 2/3 of the time the VT-231 and 6SN7GT branded tubes from the same manufacturer in the same time period are the exact same tube. VT-231s often went through an additional round of testing to meet military criteria, but physically they were the same tubes. There are exceptions though. A good example would be Raytheon and Sylvania tubes which have extra support rods in their VT-231 and W versions respectively.