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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: Re: Try This posted by Paul Barker on June 7, 2004 at 10:25:42:
For a SE circuit, yes, there would be a rise in output impedance (damping factor), but this is Class A PP circuit, so increasing the common cathode impedance actually has no effect on output Z at all - although there are minor secondary effects related to clipping, etc. when comparing zero impedance (normal cap-bypass) to near-infinite (current source).The re-discovery of the WE Harmonic Equalizer, lost since 1936, is prompting a lot of off-line discussion amongst the PP triode folks. The reduction of 3rd and 5th harmonics is real, measurable, and exists over a range of signal levels from 5 watts down to a few milliwatts. (Measured on a $15,000 Audio Precision analyzer with a noise floor at -120dB, so we're not talking test-equipment limitations here.)
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Follow Ups
- No Effect for a PP Circuit - Lynn Olson 00:06:00 06/08/04 (3)
- Re: No Effect for a PP Circuit - Dave Davenport 05:38:35 06/08/04 (1)
- Independently Re-discovered - Lynn Olson 11:25:36 06/08/04 (1)
- Thanks - Paul Barker 00:43:21 06/08/04 (0)
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