Semisouth JFET's: What are they good for? - Page 3 - diyAudio
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Old 7th October 2009, 02:59 PM   #21
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I found the thread and request 4 pcs. I don't have time to read the entire thread this morning, but will tonight after work.

This looks like fun!
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Old 7th October 2009, 03:01 PM   #22
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Might the Semisouth Jfet be a worthwhile upgrade in the Zen V4? Q1 and possibly Q2?
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Old 7th October 2009, 06:07 PM   #23
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Yes. I think you can shoehorn it into any place you would
use an N channel power Mosfet, and I expect (but don't
guarantee) lower distortion for every case.

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Old 7th October 2009, 06:13 PM   #24
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Mr. Pass, lower distortion aside, do they have their own signature sound? I don't know if such a thing even exists for other gain devices.
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Old 7th October 2009, 11:22 PM   #25
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In simple circuits, I think low distortion has its own signature,
probably by virtue of comparison with other simple circuits
that have higher distortion.

I think it sounds like a fine amplifier, but more relaxed than
your average solid state.

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Old 8th October 2009, 06:20 PM   #26
mos57 is offline mos57  Italy
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Due to only N devices avaible today, my first application is in a circlotron topology with gain.

Other good usage for me is in circuit as F xx or as Zen xx together Vfets, but in this moment i have some doubt about which devices to use as main voltage amplifier and which to use as CCS.

Francesco
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Old 8th October 2009, 08:44 PM   #27
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Quote:
Originally Posted by Tea-Bag View Post
Nelson's J2 circuit has elements of the Aleph-J and BA-1 from what I see.
Can't be too wrong to start somewhere around their. will ask cviller at BA-3 what's going on with those front end boards.
Yes, some iteration of the BA-1 would be great as I prefer balanced signal path most of the way to the speakers...

Maybe a circlotron output to try that with FETs 'cause it can sound awesome with tubes (check Atma-sphere).
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Old 9th October 2009, 06:59 PM   #28
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Old 9th October 2009, 09:11 PM   #29
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Old 9th October 2009, 09:35 PM   #30
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Quote:
Originally Posted by Nelson Pass View Post
I just wrote e-mail to them ,saying that Papa allowed my asking for free samples,50 pcs .

shipping costs on them , off course .......

now I'll investigate where da vacuum is placed in that critters ......

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