stappvarden,
I would like to see it anyway, all designs come with some very good ideas
and I invite you to show your work. No shame to build it in a coconut can
the only thing is, be proud of what you have made.
rebojorge,
I have already listened to the last prototype, same position of components,
and same values, the results were good, better than what I expected at first.
The first impressions are here:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=29739&highlight=
And the schema - tic is here! {Last final version... at this time...}
The inspirations came from:
Nelson Pass and the balzenpre {The only one and the best !}
I discovered that Bob Ellis already published a one CCS version
Henrik for his X ed versions and his help with SIMetrix
Thanks to:
Francois Gagne in Montreal and his Zen V4 for the listening scession.
Where are you, Francois ?? "Comment va-tu ?"
Regards.
Alain.
I would like to see it anyway, all designs come with some very good ideas
and I invite you to show your work. No shame to build it in a coconut can
the only thing is, be proud of what you have made.
rebojorge,
I have already listened to the last prototype, same position of components,
and same values, the results were good, better than what I expected at first.
The first impressions are here:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=29739&highlight=
And the schema - tic is here! {Last final version... at this time...}
The inspirations came from:
Nelson Pass and the balzenpre {The only one and the best !}
I discovered that Bob Ellis already published a one CCS version
Henrik for his X ed versions and his help with SIMetrix
Thanks to:
Francois Gagne in Montreal and his Zen V4 for the listening scession.
Where are you, Francois ?? "Comment va-tu ?"
Regards.
Alain.
Attachments
rebojorge,
The Schema - tic, in better definition,
Power supply +60 volts and -9 volts
{-9 volts adjustable by a LM317 in the separated Power supply}
The bias is set for 2*40 Milli amps and can reach 2*50 Milli amps
The zenner 1N5235 is a 6.8 volt 1/2 watt and the beauty is I only use of IRF 610's
All chassis are done by hand with a good file... All T6061 Aluminium
thickness: sides 3.2 mm back 4 mm, face 10 mm, foots are 3/4" round
my only "tool" is a Drilling machine... it works also as a "milling machine"
I'll send more if you like...
Hope to "power-on" next week!
Regards.
Alain.
The Schema - tic, in better definition,
Power supply +60 volts and -9 volts
{-9 volts adjustable by a LM317 in the separated Power supply}
The bias is set for 2*40 Milli amps and can reach 2*50 Milli amps
The zenner 1N5235 is a 6.8 volt 1/2 watt and the beauty is I only use of IRF 610's
All chassis are done by hand with a good file... All T6061 Aluminium
thickness: sides 3.2 mm back 4 mm, face 10 mm, foots are 3/4" round
my only "tool" is a Drilling machine... it works also as a "milling machine"
I'll send more if you like...
Hope to "power-on" next week!
Regards.
Alain.
Attachments
Really nice work Alain! I have been tossing around the idea of doing something similar to your effort, but I haven't got any further than doing some circuit modeling in Spice. To see how ridiculous I could get, I built a model for a CCS-X-CC-BOSOZ ... or in other words, a constant current source supersymmetric cascoded bride of son of zen. I'll try to get around to posting my schematic sometime in the near future.
I read you earlier listening impressions and have become quite intruiged. I look forward to hearing what you think of your finalized preamp.
Cheers, Terry
I read you earlier listening impressions and have become quite intruiged. I look forward to hearing what you think of your finalized preamp.
Cheers, Terry
Nat Riscica,
A good file, a lot of time, and ideas from all equipments I have seen.
Brian Donaldson,
Thanks.
metalman,
Looking forward for your design ; or your SIMetrix schematic...
Thanks to all for the good comments ; I don't want to compete with any one. I am just trying to make a good setup ; and it's easy with all the ideas floating around the Passlabs forum. I have to say that if I can make an other version it would be different....
I hope to finish this week end, and be able to enjoy some old vinyl...
PS: I made a mistake in post #12 : about the original inspirations:
it's Grey Rollins one CCS-Bosoz, not Bob Ellis, my apologies.
Regards.
Alain.
A good file, a lot of time, and ideas from all equipments I have seen.
Brian Donaldson,
Thanks.
metalman,
Looking forward for your design ; or your SIMetrix schematic...
Thanks to all for the good comments ; I don't want to compete with any one. I am just trying to make a good setup ; and it's easy with all the ideas floating around the Passlabs forum. I have to say that if I can make an other version it would be different....
I hope to finish this week end, and be able to enjoy some old vinyl...
PS: I made a mistake in post #12 : about the original inspirations:
it's Grey Rollins one CCS-Bosoz, not Bob Ellis, my apologies.
Regards.
Alain.
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