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Old 25th March 2013, 06:31 PM   #2931
iko is offline iko  Canada
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Too bad they don't ship to Canada.

Hey guys, has anyone tried a mosfet buffer in the 26 preamp? I get lower thd in simulation. I might just try it one of these days.

The second image is the thd values for the one with the buffer, the third image for the circuits without a buffer. I guess this could be the poor man's alternative to an output transformer when the next stage has a lowish input impedance.
Attached Images
File Type: png preamp-26-mosbuf-1b.PNG (20.4 KB, 176 views)
File Type: png preamp-26-mosbuf-1a-thd.PNG (10.2 KB, 173 views)
File Type: png preamp-26-real-2a-thd.PNG (10.0 KB, 156 views)
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Old 25th March 2013, 07:33 PM   #2932
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My 26 Preamp. Thanks for this thread and the helpful guys keeping this thread as educational as can be.

Abe
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Old 25th March 2013, 07:39 PM   #2933
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Congrats Abe, I c an see your tube gear collection
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Old 25th March 2013, 08:00 PM   #2934
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Originally Posted by merlin el mago View Post
Congrats Abe, I c an see your tube gear collection
Thank you Felipe! Yeah, some of what I built through the years and counting
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Old 25th March 2013, 08:04 PM   #2935
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If you need to make room let me know
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Old 25th March 2013, 08:58 PM   #2936
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If you need to make room let me know
Still lots of "available" room, Felipe!

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Click the image to open in full size.


Abe
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Old 25th March 2013, 09:01 PM   #2937
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Very, very nice Abe, thanks to share your paradise.
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Old 25th March 2013, 09:07 PM   #2938
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Very, very nice Abe, thanks to share your paradise.
Thanks, and welcome!
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Old 25th March 2013, 09:08 PM   #2939
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Really appreciate, I like very much your "auditorium" room.
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Old 25th March 2013, 09:15 PM   #2940
CV6045 is offline CV6045  United Kingdom
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Default 26

It looks really good, congratulations...now on to the next project !


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My 26 Preamp. Thanks for this thread and the helpful guys keeping this thread as educational as can be.

Abe
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