Building a symmetrical psu B1 buffer - Page 12

Salas · 12th July 2009, 01:33 PM

I guess you can, I did not try it though.

ferynov · 17th July 2009, 07:49 PM

ANYONE HAVE BEEN BUILD A BALANCED B1 BUFFER? ..

Floric · 17th July 2009, 08:36 PM

yes, according to the zm-version several pieces

they work excellent

edit: sorry, i built the balanced ps version. a friend of mine built a symmetrical one consisting out of two b1 per cannel. works too

regards

earsandeyes · 29th July 2009, 03:49 PM

Is the group buy still open?

And is there any indication on pricing ?

Thanks!

Michiel

grufti · 29th July 2009, 04:09 PM

For the group buy go here. Pricing was quoted some time ago for fewer boards and still a slightly different layout. It was very reasonable.

Group Buy here:http://www.diyaudio.com/forums/show...threadid=147075

korben69 · 29th July 2009, 04:11 PM

Have a look here :
GB for DC coupled B1 buffer with shunt PSUs

Salas · 27th August 2009, 06:30 PM

Latest boards are shown on the GB thread. http://www.diyaudio.com/forums/showp...&postcount=512

sutantoroy · 28th August 2009, 11:32 AM

Hi all, new member here.

I want to ask, is it okay to use resistors which is valued +/- 5% on its original value in this project? Because i have some resistors (metal film) with uncommon values, such like:
464 ohms --> substitutes the 470
215 ohms --> substitutes the 220

I want to build this thing too. But since i'm a really little poor guy now, i dont have much budget. I want to use as many components that i already have

Thanks before.

AndrewT · 28th August 2009, 04:06 PM

Hi,
+-1% resistors are close tolerance.
Most circuits will operate with +-5% tolerance.
The B1 will work with this wider tolerance.

sutantoroy · 28th August 2009, 10:05 PM

@AndrewT: Thank you Andrew

29th July 2009, 03:49 PM	#114
earsandeyes diyAudio Member Join Date: Feb 2004 Location: utrecht	GB still open? Is the group buy still open? And is there any indication on pricing ? Thanks! Michiel

28th August 2009, 11:32 AM	#118
sutantoroy diyAudio Member Join Date: Dec 2008	Ask Hi all, new member here. I want to ask, is it okay to use resistors which is valued +/- 5% on its original value in this project? Because i have some resistors (metal film) with uncommon values, such like: 464 ohms --> substitutes the 470 215 ohms --> substitutes the 220 I want to build this thing too. But since i'm a really little poor guy now, i dont have much budget. I want to use as many components that i already have Thanks before.

28th August 2009, 04:06 PM	#119
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, +-1% resistors are close tolerance. Most circuits will operate with +-5% tolerance. The B1 will work with this wider tolerance. __________________ regards Andrew T.

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12th July 2009, 01:33 PM	#111
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	I guess you can, I did not try it though.

17th July 2009, 07:49 PM	#112
ferynov diyAudio Member Join Date: May 2008 Location: Borneo Blog Entries: 3	ANYONE HAVE BEEN BUILD A BALANCED B1 BUFFER? ..

17th July 2009, 08:36 PM	#113
Floric diyAudio Member Join Date: Jan 2005 Location: Bavaria	yes, according to the zm-version several pieces they work excellent edit: sorry, i built the balanced ps version. a friend of mine built a symmetrical one consisting out of two b1 per cannel. works too regards

29th July 2009, 04:09 PM	#115
grufti diyAudio Member Join Date: Jun 2004 Location: Hillside	For the group buy go here. Pricing was quoted some time ago for fewer boards and still a slightly different layout. It was very reasonable. Group Buy here:http://www.diyaudio.com/forums/show...threadid=147075

29th July 2009, 04:11 PM	#116
korben69 diyAudio Member Join Date: Nov 2006 Location: Near Lyon	Have a look here : GB for DC coupled B1 buffer with shunt PSUs

27th August 2009, 06:30 PM	#117
Salas diyAudio Chief Moderator Join Date: Oct 2002 Location: Athens-Greece	Latest boards are shown on the GB thread. http://www.diyaudio.com/forums/showp...&postcount=512

28th August 2009, 10:05 PM	#120
sutantoroy diyAudio Member Join Date: Dec 2008	@AndrewT: Thank you Andrew

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