Supersymmetry and single gain stage

Prune · 4th September 2003, 10:13 AM

Excuse a newbie question, but I want to ask if it's possible to use supersymmetry in a circuit with a single gain stage, such as the output part of jwb's DAC (http://atari.saturn5.com/~jwb/43122.png bottom right).

Henrik · 4th September 2003, 11:38 AM

Hi prune

I have only tested it in my cdplayer, the sound is great.
The reason I haven´t implemnted it yet is lack of time, it´s a little trickey job.
Inputs, as in the scematic you just pointed to, is after C7 an C9.

Henrik · 4th September 2003, 11:51 AM

Here is a pic.

Henrik · 4th September 2003, 11:57 AM

Topview

Henrik · 4th September 2003, 12:05 PM

Actually I changed the Zener to a LM329 an R14 to 220 Ohm, like on the photo.

Henrik · 4th September 2003, 12:06 PM

And the scematic

Bricolo · 4th September 2003, 12:12 PM

what are those switches for?

Henrik · 4th September 2003, 12:13 PM

The swiches and the parts around, one resistor and one cap at each schwich, is only for testing balanced versus unbalanced input, they are supposed to be remooved afterwards.

Henrik · 4th September 2003, 12:30 PM

Bottom view

Prune · 4th September 2003, 02:39 PM

I don't understand what makes this circuit supersymmetric.
Is this the latest version in the zip file you link to?

4th September 2003, 10:13 AM	#1
Prune Account Disabled Join Date: Mar 2003 Location: Vancouver	Supersymmetry and single gain stage Excuse a newbie question, but I want to ask if it's possible to use supersymmetry in a circuit with a single gain stage, such as the output part of jwb's DAC (http://atari.saturn5.com/~jwb/43122.png bottom right).

4th September 2003, 12:05 PM	#5
Henrik diyAudio Member Join Date: Feb 2002 Location: Copenhagen Denmark	Actually I changed the Zener to a LM329 an R14 to 220 Ohm, like on the photo. __________________ Henrik

4th September 2003, 12:13 PM	#8
Henrik diyAudio Member Join Date: Feb 2002 Location: Copenhagen Denmark	The swiches and the parts around, one resistor and one cap at each schwich, is only for testing balanced versus unbalanced input, they are supposed to be remooved afterwards. __________________ Henrik

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4th September 2003, 12:12 PM	#7
Bricolo diyAudio Member Join Date: Nov 2002 Location: Grenoble, FR	what are those switches for?

4th September 2003, 02:39 PM	#10
Prune Account Disabled Join Date: Mar 2003 Location: Vancouver	I don't understand what makes this circuit supersymmetric. Is this the latest version in the zip file you link to?

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