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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: Equivalent Noise Resistance Rating posted by YoungFred on March 17, 2007 at 12:22:48:
A tube will have an instrinsic noise of its own, which cannot be reduced. When used in an amplifier, other components also add noise. Mostly resistors or other active devices.In something like a phonostage you can definately hear the difference. Some tubes just not appropriate for input stage use (the most critical). They will "hiss" more than others.
To calculate was the equivalent resistor noise is in voltage, use this handy calculator:
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Follow Ups
- It depends an awful lot on the rest of the circuit. - Jim Hagerman 00:17:11 03/18/07 (0)
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