Simplistic NJFET RIAA - Page 118

vgeorge · 24th February 2009, 06:49 PM

They are big!
Around 55 mm lenght and 27 mm width.

Regards
George

vgeorge · 24th February 2009, 06:51 PM

Just mesured the 0,1uF FT3.
They are as I said before.

George

RCruz · 24th February 2009, 10:07 PM

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

Salas · 25th February 2009, 11:58 AM

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.

Thegreathunter · 25th February 2009, 04:16 PM

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

Salas · 25th February 2009, 04:25 PM

OK

vgeorge · 25th February 2009, 04:52 PM

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.

Regards
George

Salas · 25th February 2009, 05:05 PM

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.

ikoflexer · 25th February 2009, 05:07 PM

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.

Salas · 25th February 2009, 05:10 PM

Sounds it too.

24th February 2009, 10:07 PM	#1173
RCruz diyAudio Member Join Date: Sep 2006 Location: Saxon Blog Entries: 1	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 __________________ RC

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24th February 2009, 06:49 PM	#1171
vgeorge diyAudio Member Join Date: Mar 2004 Location: poros island	They are big! Around 55 mm lenght and 27 mm width. Regards George

24th February 2009, 06:51 PM	#1172
vgeorge diyAudio Member Join Date: Mar 2004 Location: poros island	Just mesured the 0,1uF FT3. They are as I said before. George

25th February 2009, 04:16 PM	#1175
Thegreathunter diyAudio Member Join Date: Feb 2009	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

25th February 2009, 04:25 PM	#1176
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	OK

25th February 2009, 04:52 PM	#1177
vgeorge diyAudio Member Join Date: Mar 2004 Location: poros island	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. Regards George

25th February 2009, 05:05 PM	#1178
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	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.

25th February 2009, 05:10 PM	#1180
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Sounds it too.

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