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Questions about tubes and gear that glows. FAQ

RE: "Those discs are just cosmetic"

I claim total ignorance on tubes or their use in a audio circuitry. Here is a snippet from a magazine review of the unit. May be you can translate in layman's English:

"The Pro-Ject Tube Box DS2 phono preamplifier has two 12AX7 dual triodes. It is designed with the first triode as the input stage and is cascaded with a 2SK170 J-FET transistor. The gain of this stage is about 70. The second triode is used as a classic gain stage biased into pure class A."

I. Dandaroy

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