Tubes Asylum

Questions about tubes and gear that glows. FAQ

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"Those discs are just cosmetic"

Posted by 1973shovel on October 26, 2020 at 09:26:38:

As has been discussed previously on the Asylum, the 12AX7s themselves may be largely cosmetic as well.

How does Pro-Ject properly run 12AX7s, which generally use a plate voltage >200 VDC with but 18 VDC fed in?

Someone I trust told me that it sounds good, but he couldn't explain the voltage mystery either.