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Old 23rd September 2013, 04:32 AM   #1
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Default Trioderizer a solid state triode

In First Watt SIT line products we can hear triode like sound because
dear mr Nelson Pass avantgarde innovate technology
Old Sony 2SK82 have triode characteristic i try it in future for made L'amp
from great mr Michael Rothacher article
Thanks a lot my teachers
Yesterday i find this "Trioderizer" article curiosity

The Trioderizer - a solid state triode

This principe do the work in high fidelity amplifiers?
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Old 23rd September 2013, 05:22 AM   #2
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"A good candidate to emulate Triodes at high voltage is the Supertex LND150 depletion mode mosfet. This NMOS fet is available at Mouser Electronics - Electronic Components Distributor and takes up to 500V with 1mS of transconductance. This makes a good candidate to emulate a 12AX7"
12AX7/ECC83 is a twin triode find in preamplifiers
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Old 23rd September 2013, 06:59 AM   #3
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that is known around here as Shade feedback
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Old 12th October 2013, 10:18 PM   #4
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Quote:
Originally Posted by soundhappy View Post
In First Watt SIT line products we can hear triode like sound because
dear mr Nelson Pass avantgarde innovate technology
Old Sony 2SK82 have triode characteristic i try it in future for made L'amp
from great mr Michael Rothacher article
Thanks a lot my teachers
Yesterday i find this "Trioderizer" article curiosity

The Trioderizer - a solid state triode

This principe do the work in high fidelity amplifiers?
Post #5120 in the F6 Amp thread may fit. lhquam developed the base circuit. I added feedback [2 caps and one resistor] to trioderize the MOSFETs.
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Old 15th October 2013, 02:56 AM   #5
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Hi Antoinel
Thanks for your response.
Tube amplification guys who use pentodes with
fashion wiring like triode use them for different sound flavour.
If my understanding is correct it is possible make same thing
with the mosfets or jfets at price of minor modifications.
Very interesting technique specialy used with new generation of transistors
and for amp modifications if research in sound fidelity or experimentation.
Do you like this technique and its sound good ?
Do you have modified amplifiers or preamplifiers in this way ?
Cheers
Have nice day
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Old 15th October 2013, 03:05 AM   #6
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Who gentleman make some experiments with trioderise transistors
technique shade feedback and can describe results ?Thanks
Best regards
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Old 15th October 2013, 11:28 AM   #7
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Quote:
Originally Posted by soundhappy View Post
Who gentleman make some experiments with trioderise transistors
technique shade feedback and can describe results ?Thanks
Best regards
Mr.Pass and DIYer wrenchone plus many others.
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Old 15th October 2013, 09:49 PM   #8
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Quote:
Originally Posted by Antoinel View Post
Mr.Pass and DIYer wrenchone plus many others.
Ok Antoinel but this is half of response on my question its sound linear ,
more lively or realistic ...any descryption ?
Best regards
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Old 15th October 2013, 10:10 PM   #9
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Quote:
Originally Posted by soundhappy View Post
Ok Antoinel but this is half of response on my question its sound linear ,
more lively or realistic ...any descryption ?
Best regards
I do not have a practical answer; but wrenchone may fill in actual details; for example from his build of L'Fake....
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Old 16th October 2013, 12:15 AM   #10
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Thanks for your response Antoinel
For the moment i stay with real triode characteristics
sit vfet Sony transistors i have chance to build in near future
the amplifiers like L'Amp and new SJ/SK from dear Papa
no passive components only iron , after his new article be aviable on line.
Hope finish them in 2014 , but after maybe
i try this technique with new low noise transistors.
It be fun make on-off switch between pentode and triode
mode to compare quickly the sound flavor
Cheers
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