I guess I will have to make a list of everything in that schematic.
and then bread board....
This is an endevour! I guess I need to rock Vishays and N BGs for it. CREE diodes... hmm... This will be interesting. How are you getting cheaper? $112 of Vishay resistors, $40 of diodes, have not even made it yet to the BGs.
Why are there no JFETs in that schematic? Are those other transistors and opamps going to sound good?
I never found the SSM items. The diodes are cheap ones in the schematic that are labled. Hmm...
I guess I need to find someone that knows about this particular buffer.
and then bread board....
This is an endevour! I guess I need to rock Vishays and N BGs for it. CREE diodes... hmm... This will be interesting. How are you getting cheaper? $112 of Vishay resistors, $40 of diodes, have not even made it yet to the BGs.
Why are there no JFETs in that schematic? Are those other transistors and opamps going to sound good?
I never found the SSM items. The diodes are cheap ones in the schematic that are labled. Hmm...
I guess I need to find someone that knows about this particular buffer.
The kit contains Dale resistors and Panasonic caps, from here you can go with upgrades, if it's worth it ;0
There was a discussion on that particular buffer circuit here: http://www.diyaudio.com/forums/showthread.php?s=&threadid=41562&highlight=
There was a discussion on that particular buffer circuit here: http://www.diyaudio.com/forums/showthread.php?s=&threadid=41562&highlight=
_henry_ said:
It's been posted here: http://www.diyaudio.com/forums/showthread.php?postid=1579027#post1579027
ADding Toslink is not a problem, to have both SPDIF and USB input, two separate front end boards are needed though.
Attachments
Destroyer OS. said:
I don't have a kit for Borberly, the circuit is simple enough to do it p2p. When you mentioned $120 for Vishays, I thought you meant ML buffer
The best place to get Vishays is TC: http://www.diyaudio.com/forums/showthread.php?postid=459292#post459292
I guess I am just confused where to find a schematic for the Borberly, that has values in it.
I found this, JFET buffer talk, lineups's look fun and easy...
http://www.diyaudio.com/forums/showthread.php?s=&threadid=95007&perpage=25&highlight=&pagenumber=3
From Boberly,
http://www.borbelyaudio.com/adobe/ae699bor.pdf
There is no values or part numbers though.
I found this, JFET buffer talk, lineups's look fun and easy...
http://www.diyaudio.com/forums/showthread.php?s=&threadid=95007&perpage=25&highlight=&pagenumber=3
From Boberly,
http://www.borbelyaudio.com/adobe/ae699bor.pdf
There is no values or part numbers though.
Hot potato, just found this...
http://www.welbornelabs.com/miniamp.htm
That could make it all simple.
http://www.welbornelabs.com/miniamp.htm
That could make it all simple.
Destroyer OS. said:
It's a circuit in fig 15C; all values are given.
Destroyer OS. said:
I would be careful with Welbourne: http://www.diyaudio.com/forums/showthread.php?s=&threadid=115516&highlight=
Found JFETs,
This is so cool, I am way excited.
http://www.ampslab.com
or
http://www.tech-diy.com
Any recommendation on the to ground resistor? 1/2mil? Is that the purpose of it?
This is so cool, I am way excited.
http://www.ampslab.com
or
http://www.tech-diy.com
Any recommendation on the to ground resistor? 1/2mil? Is that the purpose of it?
Use tech-diy, he's a forum member here.
If you mean 500k for input shunt, I guess it's a choice like any other.
Check this link as well: http://www.passdiy.com/pdf/B1 Buffer Preamp.pdf
If you mean 500k for input shunt, I guess it's a choice like any other.
Check this link as well: http://www.passdiy.com/pdf/B1 Buffer Preamp.pdf
I am going with Tech - DIY, he offers matching pairs and quads.
What is the shunt doing in this case? I mean is the point to make sure the signal stays in the circuit because the RCA jacks can draw on the case? er?
Next I must build a PSU. That I am very undecided on. I assume one would work for both. I thought about just rocking the type of PSU you have with yours, 4 diodes and a transformer... Then some voltage regulators and some BG standards, maybe 100uf. I am not sure what voltage regulators to use, that can handle regulating down. Then I have no idea where 24v 2 channel transformers are at for a regulated PSU.
I just but something up for sale locally so hopefully soon the DAC will be next, especially since I think my TT is going to be sold and pay for some digital mods to my Squeezebox!
What is the shunt doing in this case? I mean is the point to make sure the signal stays in the circuit because the RCA jacks can draw on the case? er?
Next I must build a PSU. That I am very undecided on. I assume one would work for both. I thought about just rocking the type of PSU you have with yours, 4 diodes and a transformer... Then some voltage regulators and some BG standards, maybe 100uf. I am not sure what voltage regulators to use, that can handle regulating down. Then I have no idea where 24v 2 channel transformers are at for a regulated PSU.
I just but something up for sale locally so hopefully soon the DAC will be next, especially since I think my TT is going to be sold and pay for some digital mods to my Squeezebox!
what kind of transport will do well for this, i mean regular compo cd player with possibly digital out, or dvd player?
i tried a pioneer dvd player with audionote zero dac few years ago, its improvement but sounded very thin, and any britain cd player easily outclass them like NAD or ARCAM.
but i heard the DAC from REGA transport is very good.
i tried a pioneer dvd player with audionote zero dac few years ago, its improvement but sounded very thin, and any britain cd player easily outclass them like NAD or ARCAM.
but i heard the DAC from REGA transport is very good.
Destroyer OS. said:
You can use similar supply I used in ML buffer (see schematic)
Shunt sets input resistance.
_henry_ said:
The best one you can afford. If you can't find anything suitable, use a computer and USB version of a DAC, which is also available.
While developing DAC circuit, I was using ML31.6, ML37 and later CEC TL0. I presently use this: http://www.diyaudio.com/forums/showthread.php?s=&threadid=120229&pagenumber=1
I am trying to out source some knowledge but if you are bored....
http://www.diyaudio.com/forums/showthread.php?s=&threadid=131075
http://www.diyaudio.com/forums/showthread.php?s=&threadid=131075
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