ESL-63 question

hesener · 3rd December 2007, 09:46 PM

Hi, quick question on the ESL63 step-up transformers - does anybody know the ratio of these? from the schematic posted at sheldon's world (www.quadesl.com) it seems that each speaker has two transformers for the two polarities...
thanks in advance
hesener
PS: yes I searched andcould not find anything around here.... one post was talking about "more than 1:200" but no more precise than that......

Calvin · 4th December 2007, 06:36 AM

Hi,

my Infos say 1:260-1:270. Any of said numbers means a ridiculously high value. But the concept of the ESL63 demands higher transformation factors than other designs

jauu
Calvin

harry_at · 10th December 2007, 05:25 PM

Hi,

quote from the Baxandall article:

"...in the Quad Esl-63, where two seperate transformers, each of ratio 1:122,5 are used to drive the plates, rather than a single transformer with a centre tapped secondary."

Harry

hesener · 10th December 2007, 08:58 PM

thanks a lot guys!

3rd December 2007, 09:46 PM	#1
hesener diyAudio Member Join Date: Mar 2005 Location: Munich, Germany	ESL-63 question Hi, quick question on the ESL63 step-up transformers - does anybody know the ratio of these? from the schematic posted at sheldon's world (www.quadesl.com) it seems that each speaker has two transformers for the two polarities... thanks in advance hesener PS: yes I searched andcould not find anything around here.... one post was talking about "more than 1:200" but no more precise than that......

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4th December 2007, 06:36 AM	#2
Calvin diyAudio Member Join Date: Nov 2004 Location: close to Basel	Hi, my Infos say 1:260-1:270. Any of said numbers means a ridiculously high value. But the concept of the ESL63 demands higher transformation factors than other designs jauu Calvin

10th December 2007, 05:25 PM	#3
harry_at diyAudio Member Join Date: Jun 2006 Location: Austria	Hi, quote from the Baxandall article: "...in the Quad Esl-63, where two seperate transformers, each of ratio 1:122,5 are used to drive the plates, rather than a single transformer with a centre tapped secondary." Harry

10th December 2007, 08:58 PM	#4
hesener diyAudio Member Join Date: Mar 2005 Location: Munich, Germany	thanks a lot guys!

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