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K&K Audio / Lundahl Transformers Welcome! Need support, you got it. Or share youe ideas and experiences. |
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K&K Audio / Lundahl Transformers Welcome! Need support, you got it. Or share youe ideas and experiences. |
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In Reply to: Question on 'source impedance'. posted by Story on October 23, 2002 at 13:41:28:
You are correct. A source impedance equal to or less than the specified value will prevent in-band high frequency roll-off. However, if the plate impedance of the tube is markedly lower than the specified value, you can expect to see some transformer resonances in the region above 20kHz. These can be reduced to a substantial degree by loading the transformer secondary with resistors, but too much loading can "deaden" the sound, so approach loading as a listen-and-change activity.Kevin
Edits: 10/10/20 10/11/20 10/11/20 10/11/20
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- Re: Question on 'source impedance'. - KevinC 18:19:56 10/23/02 (0)
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