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Simplistic NJFET RIAA
Simplistic NJFET RIAA
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Old 24th February 2009, 07:49 PM   #1171
vgeorge is offline vgeorge  Greece
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Simplistic NJFET RIAA
They are big!
Around 55 mm lenght and 27 mm width.

Regards
George
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Old 24th February 2009, 07:51 PM   #1172
vgeorge is offline vgeorge  Greece
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Simplistic NJFET RIAA
Just mesured the 0,1uF FT3.
They are as I said before.

George
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Old 24th February 2009, 11:07 PM   #1173
RCruz is offline RCruz  Switzerland
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Simplistic NJFET RIAA
Thank you....

27mm is probably the max diameter I can use without major cirurgy for C1... both channels are in the same pcb and the two big 15.7n are 28mm appart....!!!

Ricardo
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Old 25th February 2009, 12:58 PM   #1174
Salas is offline Salas  Greece
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Simplistic NJFET RIAA
Here is what the DENON DL-160 does on the Walker TT and Mission arm through our phono. Red is right channel, black is left. Resolution 1/12 Octave. Pink noise is from Telarc Omnidisc side 2 track 13. The levels are not artificially matched, what you see is the real channel matching of the whole system.
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Old 25th February 2009, 05:16 PM   #1175
Thegreathunter is offline Thegreathunter  Netherlands
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Hi Salas,
I am actually interested by the modifications you made on Jadis equipment but since I am new member cannot e-mail you directly, could you e-mail me at richard.rouquet@missioneco.org?
Thanks,
Richard
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Old 25th February 2009, 05:25 PM   #1176
Salas is offline Salas  Greece
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OK
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Old 25th February 2009, 05:52 PM   #1177
vgeorge is offline vgeorge  Greece
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Simplistic NJFET RIAA
Hi Salas,

I already finished the shunt power suply - dual mono with a clc before the shunt - and doing they layout for the RIAA. I have one question.
Does C11 need to be 220 uF or I can use a 470 uF. Is this value critical? I have some panasonic 220, but would prefer to use some 470 BG I have.

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George
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Old 25th February 2009, 06:05 PM   #1178
Salas is offline Salas  Greece
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Simplistic NJFET RIAA
Its an RC filter to keep the high mA buffer from modulating the stages before it. Since the RxC time constant is big enough due to enough R, 220uF is just the base. You can scale up, no worries.
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Old 25th February 2009, 06:07 PM   #1179
iko is offline iko  Canada
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Simplistic NJFET RIAA
Quote:
Originally posted by salas
Here is what the DENON DL-160 does on the Walker TT and Mission arm through our phono. Red is right channel, black is left. Resolution 1/12 Octave. Pink noise is from Telarc Omnidisc side 2 track 13. The levels are not artificially matched, what you see is the real channel matching of the whole system.

Wow! Nice.
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Old 25th February 2009, 06:10 PM   #1180
Salas is offline Salas  Greece
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Sounds it too.
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