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Old 2nd April 2012, 06:38 PM   #1111
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Old 3rd April 2012, 01:39 PM   #1112
ide2003 is offline ide2003  Indonesia
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Quote:
Originally Posted by schultzsch View Post
I have decoupled R24 from the circuit, ..
Hi, I'm new here and in the middle of tweaking my aleph J with 2sk1530, what is exactly 'decoupling R24'? how it's done?

thanks
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Old 3rd April 2012, 01:41 PM   #1113
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you simply remove R24 from the circuit, this improves sound quality but lowers the power.give it a try!
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Old 3rd April 2012, 01:44 PM   #1114
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some like it , some do not

with removal of that resistor , Aleph CCS became plain , un-modulated , CCS
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Old 3rd April 2012, 02:14 PM   #1115
ide2003 is offline ide2003  Indonesia
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It means that C3 is non functional, worth trying I think
and ZM, any other changes required with 2SK1530 when R24 is removed? I have biased the SK's at 0.5A

thanks (just get back from fun reading the papa 'clone' casing)
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Old 3rd April 2012, 02:20 PM   #1116
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Quote:
Originally Posted by ide2003 View Post
It means that C3 is non functional, worth trying I think
and ZM, any other changes required with 2SK1530 when R24 is removed? I have biased the SK's at 0.5A

thanks (just get back from fun reading the papa 'clone' casing)
pull out C3 or R24 , whatever ..... same as that you pulled them both

0,5A - that's some sissy amp , presuming that you have just 2 output pairs ........ = 1A Iq

no other changes
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Old 3rd April 2012, 02:38 PM   #1117
ide2003 is offline ide2003  Indonesia
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Yup ZM, quite that way with borrowed SK's ha ha
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Old 3rd April 2012, 02:42 PM   #1118
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do you have any ideea where some of these K1530 can be found at a reasonable price and original?
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Old 3rd April 2012, 02:43 PM   #1119
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what better substitutes are for irfp240 ?
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Old 3rd April 2012, 02:46 PM   #1120
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240 are good enough

or be a cheapskate , with better sound (sic!) and use just one pair of IRFP150

see Babelfish J
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