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Old 30th November 2010, 05:08 PM   #411
jef9200 is offline jef9200  Belgium
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Hi, Apex.. i've try the regulated supply with a chinese kit (jims audio) that i couldn't make work correctly. Surprise !! works good now ! too much trebble for my taste, too cristalin ; but that'is a other story ! (Kef104AB).
Now i have to try one of your amp ...AX14 or FX100 ???
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Old 30th November 2010, 07:37 PM   #412
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Quote:
Originally Posted by jef9200 View Post
Hi, Apex.. i've try the regulated supply with a chinese kit (jims audio) that i couldn't make work correctly. Surprise !! works good now ! too much trebble for my taste, too cristalin ; but that'is a other story ! (Kef104AB).
Now i have to try one of your amp ...AX14 or FX100 ???
FX100 is classic topology, I suggest you to try AX14.
Regards
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Old 30th November 2010, 08:09 PM   #413
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Use schematic from post #351 100W Ultimate Fidelity Amplifier
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Old 2nd December 2010, 03:02 PM   #414
jef9200 is offline jef9200  Belgium
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Ok for AX14; board is etched this morning . Some components are already soldered, have to wait for others. Can i use 33uf/63V in place of 22uf /63V ? i've them .
Regards.
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Old 2nd December 2010, 03:08 PM   #415
jef9200 is offline jef9200  Belgium
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some pictures... hope Ax will sound good !
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File Type: jpg IMG_1330web.jpg (194.5 KB, 1472 views)
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Old 2nd December 2010, 03:43 PM   #416
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Originally Posted by jef9200 View Post
Ok for AX14; board is etched this morning . Some components are already soldered, have to wait for others. Can i use 33uf/63V in place of 22uf /63V ? i've them .
Regards.
You can use 33uF instead 22uF, and use this wireing circuit for test.
Regards
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Old 7th December 2010, 10:02 AM   #417
Mamak is offline Mamak  Malaysia
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I made this amplifier for test my home DIY speakers (two way TL).
apex.i build this ax14 amp.but,its not work.my problem is when i connect speaker.resistor side 2sc5200 become very hot.and when i check ac voltage at output.its have high voltage.what must i do?how to check bjt with multimeter?
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Old 7th December 2010, 10:53 AM   #418
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Originally Posted by Mamak View Post
apex.i build this ax14 amp.but,its not work.my problem is when i connect speaker.resistor side 2sc5200 become very hot.and when i check ac voltage at output.its have high voltage.what must i do?how to check bjt with multimeter?
Can you post pictures?
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Old 7th December 2010, 10:57 AM   #419
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Originally Posted by jef9200 View Post
some pictures... hope Ax will sound good !
nice pcb,
how you make your pcb,
ink jet printer + photo paper + ironing?
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Old 7th December 2010, 11:00 AM   #420
Mamak is offline Mamak  Malaysia
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Can you post pictures?
plez check apex.now i disconnect diode at power output.sorry picture not good quality
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