Simplistic NJFET RIAA - Page 746

dimkasta · 25th March 2012, 12:32 AM

Quote:

Originally Posted by merlin el mago

You have to read the thread, each SS NJFET RIAA is make for your cartridge output & the NJFET Idss that you have on hand.

True and Salas' is patience is amazing on that matter. But I thought the customization only dealt with values of parts, while maintaining a specific topology.
Could the topology change as well?

Juuso · 25th March 2012, 12:35 AM

Quote:

Originally Posted by merlin el mago

You have to read the thread

Yup, post 7451...
I thought that while the components vary, the layout (i.e. board) would stay the same. Oh, well.

Salas · 25th March 2012, 12:48 AM

How can layout be the same if one gets MKP1837s and another FT-3s? Its a highly tweaky thingy this phono to carve in stone. If you say ''yeah make it to that standard its balanced enough'' it loses the magic of the few to taste components open loop design that make it suited to one's cart tone etc. That ''my vinyl rig and a glove I made for it'' feeling.

evanc · 25th March 2012, 01:10 AM

Boxed up my rig this evening. The results are all I hoped for... total silence...except for the music. The kids are in bed so for now I can only listen at low volume, but the sound seems excellent. I used better parts for this build, as well as two chassis and the effort and cost seem well worth it. Thanks again for the help, Evan

evanc · 25th March 2012, 01:11 AM

maybe the pics this time

Salas · 25th March 2012, 02:15 AM

Thumbs up on the hum front. You tell us more about the listening with this new set up after you spin a few records in proper SPL and leisure.

Salas · 25th March 2012, 02:20 AM

P.S. Example of the favorite parts large possible gamut the green ones.

Salas · 25th March 2012, 02:24 AM

P.S.2 Where is the ground lug for the arm?

evanc · 25th March 2012, 02:47 AM

I changed so many parts from the first build it will be impossible to tell where the differences come from.

I wired ground from the one box to the other using a connector held down by one of the cover screws. This also gets the arm ground. I did not ground the shell of the caps...I didn't notice any difference in the hum when I put a finger to them. Maybe this will have to be addressed if I go for a lower output cart. In the future and implement a mc pre preamp.

What I hear now even at moderate volume is a richer bass as well as improved detail. It also sounds to me , and I know it's an illusion, is that the speakers have moved further apart and the room has gotten bigger....open your eyes when the needle lifts off the record and wham I'm back in my living room.....

Salas · 25th March 2012, 03:04 AM

You warm up to it as fast as a Metcal iron is a good sign.

Enjoy your work's fruits & keep us posted.

25th March 2012, 01:10 AM	#7454
evanc diyAudio Member Join Date: Sep 2009 Location: New Jersey. About 1 hour from NYC and 1 min. from the beach	Boxed up my rig this evening. The results are all I hoped for... total silence...except for the music. The kids are in bed so for now I can only listen at low volume, but the sound seems excellent. I used better parts for this build, as well as two chassis and the effort and cost seem well worth it. Thanks again for the help, Evan __________________ http://www.evancotler.com

25th March 2012, 02:47 AM	#7459
evanc diyAudio Member Join Date: Sep 2009 Location: New Jersey. About 1 hour from NYC and 1 min. from the beach	I changed so many parts from the first build it will be impossible to tell where the differences come from. I wired ground from the one box to the other using a connector held down by one of the cover screws. This also gets the arm ground. I did not ground the shell of the caps...I didn't notice any difference in the hum when I put a finger to them. Maybe this will have to be addressed if I go for a lower output cart. In the future and implement a mc pre preamp. What I hear now even at moderate volume is a richer bass as well as improved detail. It also sounds to me , and I know it's an illusion, is that the speakers have moved further apart and the room has gotten bigger....open your eyes when the needle lifts off the record and wham I'm back in my living room..... __________________ http://www.evancotler.com

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25th March 2012, 12:48 AM	#7453
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	How can layout be the same if one gets MKP1837s and another FT-3s? Its a highly tweaky thingy this phono to carve in stone. If you say ''yeah make it to that standard its balanced enough'' it loses the magic of the few to taste components open loop design that make it suited to one's cart tone etc. That ''my vinyl rig and a glove I made for it'' feeling.

25th March 2012, 02:15 AM	#7456
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Thumbs up on the hum front. You tell us more about the listening with this new set up after you spin a few records in proper SPL and leisure.

25th March 2012, 02:20 AM	#7457
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	P.S. Example of the favorite parts large possible gamut the green ones.

25th March 2012, 02:24 AM	#7458
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	P.S.2 Where is the ground lug for the arm?

25th March 2012, 03:04 AM	#7460
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	You warm up to it as fast as a Metcal iron is a good sign. Enjoy your work's fruits & keep us posted.