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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: The Inwards of the Modules posted by john curl on May 22, 2001 at 14:16:10:
John,
I was not talking about my own design but about the latest modules for the Mark Levinson ML-1 preamplifier to avoid confusion. Yes the one with the PLS150 powersupply.
Both the phono module and the line module use the FET's I mentioned (2N4392, 2N 5115.) and MPSU type transistors as output as a follower or 'folded cascoded' as in your schematic published in the Audio Amateur. The schematic can also be found on the MarkLev site. The phono module uses one of each kind of thse FET's; the line module uses two of each kind just as in your schematic. I am still very interested in the Positive Feedback article. Can you indicate the issue#???
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Now about my own design: AFTER this:
Well I also made a PC board for the phonomodule, one IC and two transistors. IC= AD847. Later AD brought out the AD817. I that case only one AD817 is needed to replace a entire phonomodule. Absolutely no problem with noise! Sounded good to my ears.
Thank you.
ELSO
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Follow Ups
- Re: The Inwards of the Modules - Elso Kwak 05/22/0116:02:05 05/22/01 (1)
- Re: The Inwards of the Modules - john curl 21:52:46 05/22/01 (0)
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