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Old 15th June 2017, 04:00 PM   #9671
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Default Apex AX-14

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Originally Posted by aliskamjad View Post
Good Afternoon Mr.Mile,
Can I use C3856/A1492 instead of C5200/A1943, if yes then do i need to change anything using rail voltage +/-56V, and which will be better c5200 or c3856 in terms of sound qualtiy and stability.
Thanks Mr. Mile for this wonderfull Amplifier, bass & treble is excellent. Thank you very much once again. Wow.....
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Old 15th June 2017, 07:06 PM   #9672
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Originally Posted by aliskamjad View Post
Thanks Mr. Mile for this wonderfull Amplifier, bass & treble is excellent. Thank you very much once again. Wow.....
Can you post some pictures of your work.
Regards
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Old 16th June 2017, 04:29 PM   #9673
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Default Apex AX-14

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Can you post some pictures of your work.
Regards
Good Evening Mr. Mile,
This i made as a test amp, now I'll build a stereo version in a single board. Need some more help from you regarding protection circuit.
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File Type: jpg CAM00006.jpg (611.6 KB, 366 views)
File Type: jpg CAM00007.jpg (469.4 KB, 349 views)
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Old 18th June 2017, 10:00 AM   #9674
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Originally Posted by apexaudio View Post
FA9 class A

hi mr. mile, newbie here. i almost finish populating the pcb board (FA9). if i change bd139/140 to 2sc5171/2sa1930, is there any significant difference? say, high or mid tone.

regards,

rioClick the image to open in full size.
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Old 18th June 2017, 12:31 PM   #9675
44250 is online now 44250  Serbia
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I have sent pcb files of AlexMM's version 1.4 of APEX A40 to be done by a friend of mine (the same one will make me APEX SR300 boards). as soon I do any progress I will post results.
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Old 18th June 2017, 06:03 PM   #9676
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Default AX30

i have done some prepairing to draw a pcb for APEX AX30:
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Old 19th June 2017, 07:44 AM   #9677
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i have done some prepairing to draw a pcb for APEX AX30:
I haven't check for possible wrong connections but i must say that is a clever clear schematic diagram!
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Old 19th June 2017, 11:48 AM   #9678
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true,but it is not really "peace of cake" to draw a pcb for it,there is a lot of transistors that need to be together on a same heatsink and also to avoid too much jumpers. really not a usuall schematics,at least for output stage.
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