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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: oops... posted by Try-ode on March 19, 2007 at 06:53:30:
Changing the voltage at the cathode not only changes Vgk, but also Vak. It might not mean much, especially in the case of a tube with high plate resistance, but something with very low ra and mu? I dunno, the cathode (even ignoring input impedance) is not *exactly* the same input as the grid and won't have *exactly* the same distortion characteristics. The difference might be genuinely negligible compared with all the other realities involved, but...-- Dave
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Follow Ups
- It's not exactly the same.... - Dave Cigna 12:52:37 03/19/07 (1)
- Re: It's not exactly the same.... - Try-ode 15:49:41 03/19/07 (0)
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