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RE: What tubes to use with this Interstage Transformers?

I think you just need to come up with a fundamental understanding of what source impedance is because you keep defining it over and over and then say it cant be.

that pesky variable voltage drop is exactly what you are looking for and is caused by a finite inductance working against a known source impedance. If we drove everything from perfect voltage source then we would get bass response down to DC.

The signal generator is a wavetek 288 and there are switched resistors right at the unbalanced output. I asked a guy at audio precision how they define their source impedance and he also said they switch a "resistor" at the output. I'm sure the guys at HP and tek are also smart enough to put those resistors (or an equivalent sand device) inside the box.

dave


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  • RE: What tubes to use with this Interstage Transformers? - dave slagle 08:18:53 09/05/16 (0)
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