R1 & R8 values for A30

thomasfw · 24th April 2008, 04:56 AM

Could any one tell what is the value of R1 & R8 for A30 ?
Where I can find the calculation information ?

Thanks !

h_a · 24th April 2008, 06:53 AM

Please read the Aleph30-wiki, all information there.

http://www.diyaudio.com/wiki/index.php?page=Aleph-30

Have fun, Hannes

thomasfw · 24th April 2008, 07:41 AM

Thanks !
BTW, by experience what is value range ?

thomasfw · 30th April 2008, 02:24 AM

Quote:

Originally posted by h_a
Please read the Aleph30-wiki, all information there.

http://www.diyaudio.com/wiki/index.php?page=Aleph-30

Have fun, Hannes

I still can't find the answer

Can anyone give me some hints !

Many Thanks !

Nelson Pass · 30th April 2008, 02:45 AM

Quote:

Originally posted by thomasfw
what is value range ?

Start with high values and progress down.

thomasfw · 30th April 2008, 03:03 AM

Thanks Mr.Nelson Pass !!
Should I use two 200k trim pot ?
It is because in a China Diy web, someone have tried to use 100K X2.
Inaddition, he also said that it no different with the offset (15mV) after took both of it out !
I am indoubt what he said, even in A30 manual , the std. offset is <100mV.
Someone said the R1 & R8 must be same value.

24th April 2008, 04:56 AM	#1
thomasfw diyAudio Member Join Date: Jan 2005 Location: Hong Kong	R1 & R8 values for A30 Could any one tell what is the value of R1 & R8 for A30 ? Where I can find the calculation information ? Thanks !

24th April 2008, 06:53 AM	#2
h_a diyAudio Member Join Date: Sep 2006 Location: Graz, Austria	Please read the Aleph30-wiki, all information there. http://www.diyaudio.com/wiki/index.php?page=Aleph-30 Have fun, Hannes __________________ fresh matched IRFP240/IRFP9240 fets \|\| AlephJ/JX-kits F5 transistor kits \|\| Burning Amp BA-1/2/3 transistor kits

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24th April 2008, 07:41 AM	#3
thomasfw diyAudio Member Join Date: Jan 2005 Location: Hong Kong	Thanks ! BTW, by experience what is value range ?

30th April 2008, 03:03 AM	#6
thomasfw diyAudio Member Join Date: Jan 2005 Location: Hong Kong	Thanks Mr.Nelson Pass !! Should I use two 200k trim pot ? It is because in a China Diy web, someone have tried to use 100K X2. Inaddition, he also said that it no different with the offset (15mV) after took both of it out ! I am indoubt what he said, even in A30 manual , the std. offset is <100mV. Someone said the R1 & R8 must be same value.

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