Simplistic NJFET RIAA - Page 711

Bksabath · 30th December 2011, 10:19 PM

Quote:

Originally Posted by Joao@AltheaMusica

Have you tried to use small caps, ~ 0.1µF, soldering direct to the pins of the LM317 (from input and output to ground)? This should avoid oscillation.

No I have not tried that but I got a couple of circuits I am working on.

As I said at the begining of my adventure with Simplistic this is a realy good way to learn things (which is what interest me) so I will give the small capacitors a try and for this I tank you.

I got a board ready for Gyrator folowed by 317 and I will put the caps there and see.

Salas · 30th December 2011, 10:24 PM

Could you distinguish batteries and reflektors subjectively? Forgot to ask.

Bksabath · 30th December 2011, 10:36 PM

I will need to do back to back listening which, as you ask I feel is the least I can do after all your help.

Fortunatley with new job I am now working 12 hours shifts 4 on 4 off so soon I will get plenty more spare time to try things out. (main reason why I have changed jobs but do not tell her please)

Salas · 30th December 2011, 10:43 PM

Its OK, never mind, its a hassle. I just asked in case you had done some comparison back then.

Bksabath · 30th December 2011, 10:57 PM

No hassle at all I think is actualy a realy good question.

I did not get a chance to listen to the 2 back to back due to the fact that once started I just could not stop putting just one more record on the spinner.

That just one more folowed by just one more folowed.... What beter indication of how good the Simplistic is?

Salas · 30th December 2011, 11:00 PM

Naah, you just had bought a cheap bunch of vinyl at the flea bargain bins that day.

Joao@AltheaMusica · 31st December 2011, 09:05 AM

Quote:

Originally Posted by RCruz

Olá João
You have e-mail

Oi Ricardo

Yes I received your E-Mail and will respond next days. Looking forward to meet you

Joao@AltheaMusica · 31st December 2011, 09:12 AM

Quote:

Originally Posted by Bksabath

No I have not tried that but I got a couple of circuits I am working on.

As I said at the begining of my adventure with Simplistic this is a realy good way to learn things (which is what interest me) so I will give the small capacitors a try and for this I tank you.

I got a board ready for Gyrator folowed by 317 and I will put the caps there and see.

You're welcome and I'm glad if I can help you. Aside audio design it's common known that those little "dears" need thos caps.

Anyway, I think with Salas low voltage regs you don't need a LM in front, so just go for a good energy storage with LC or RC filters.

Another way is, like Salas mentioned to use batteries ... but this is another cup of tea.

Have a look at Thel Audio

Salas · 31st December 2011, 06:11 PM

Quote:

Originally Posted by df_genius

I've had a look at my J-fets and I have the following in higher values:
....
9.2-9.4 - 14
....

RCruz · 31st December 2011, 06:17 PM

Happy New Year Salas !

31st December 2011, 06:17 PM	#7110
RCruz diyAudio Member Join Date: Sep 2006 Location: Saxon Blog Entries: 1	Happy New Year Salas ! __________________ RC

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30th December 2011, 10:24 PM	#7102
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Could you distinguish batteries and reflektors subjectively? Forgot to ask.

30th December 2011, 10:36 PM	#7103
Bksabath diyAudio Member Join Date: Dec 2007	I will need to do back to back listening which, as you ask I feel is the least I can do after all your help. Fortunatley with new job I am now working 12 hours shifts 4 on 4 off so soon I will get plenty more spare time to try things out. (main reason why I have changed jobs but do not tell her please)

30th December 2011, 10:43 PM	#7104
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Its OK, never mind, its a hassle. I just asked in case you had done some comparison back then.

30th December 2011, 10:57 PM	#7105
Bksabath diyAudio Member Join Date: Dec 2007	No hassle at all I think is actualy a realy good question. I did not get a chance to listen to the 2 back to back due to the fact that once started I just could not stop putting just one more record on the spinner. That just one more folowed by just one more folowed.... What beter indication of how good the Simplistic is?

30th December 2011, 11:00 PM	#7106
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Naah, you just had bought a cheap bunch of vinyl at the flea bargain bins that day.