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In the Forum: Analog Playback
In the Thread: The last phonocorrector: “End of Life" Phonostage
Post Subject: Mica, distortions, MOSFET and the Ocean State.Posted by Romy the Cat on: 6/3/2008
 Brian Clark wrote: |
| I have some ZVN0545A mosfets here for exactly that purpose of replacing cathode followers. You may like to try this starting at 2mA (250V supply, 125k biasing resistor). |
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Brian, and how do you find your MOSFET behaves compare the 12AX7-based cathode follower?
| Brian Clark wrote: |
| Did you or Dima try Soviet SSG silver-mica for the first coupler? I am using 0.175uF items for excellent results though I haven't compared to teflon. |
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Nope I did not try them. I have 5-6 different versions of silver-mica though and I prefer air caps. I do not know what Dima tried. He has the same corrector with Ocean State’s air caps only in place of the first 12AXy he uses Russian nuvistors
| Brian Clark wrote: |
| The 834P circuit is not designed for low distortion (probably why Guy dislikes it) but for "listener-friendly" natural harmonic decay. I guess that accounts for the magic…. |
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This is big question but I would have a lot of to say. I do not think that 834P circuit is designed for any specific distortions. I understand “distortions” differently. You might read my Macondo Page that gives an idea how I see distortions….
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