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Old 30th October 2010, 06:35 PM   #921
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Quote:
Originally Posted by andrewlebon View Post
hi apexaudio
greetings vertex driver pcb output transistors on another pcb
1 can BC546 BC556 BE USED IN PLACE OF BC560 BC55O have BC550C but no
BC560
THANKING YOU
ANDREW LEBON
You can use BC546/556 instead BC550/560, and use TL071 or LF411 no need for dual OP amp for single channel DC servo, with dual OP amp second OP amp is for thermal protect.
Regards
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Old 30th October 2010, 08:37 PM   #922
achenk is offline achenk  Indonesia
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Hi,Mr.Mile

This my H900, in the process of testing, the results were extraordinary.

Thank Mr.Mile!
Attached Images
File Type: jpg cam0074b.jpg (126.2 KB, 1372 views)

Last edited by Pano; 31st October 2010 at 02:52 PM. Reason: reduced photo size
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Old 30th October 2010, 09:56 PM   #923
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Nice work, can you post some more informations.
MJE340/350 in VAS must have heatsinks.
Thank's for picture in high resolution.
Regards
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Old 30th October 2010, 09:59 PM   #924
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Don't forget to conect protect GND to main PSU GND.
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Old 31st October 2010, 07:14 AM   #925
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hi workhorse
greetings well i have no pcb software all drawn by hand then corel
draw once vertex is working brand new pcb everything on it proffessional look
thanking you
andrew lebon
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Old 31st October 2010, 07:36 AM   #926
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Quote:
Originally Posted by andrewlebon View Post
hi workhorse
greetings well i have no pcb software all drawn by hand then corel
draw once vertex is working brand new pcb everything on it proffessional look
thanking you
andrew lebon
This was my first pcb i had made that too first time for my first class-H back in 2006 with a cheap traxmaker software.

Click the image to open in full size.
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Old 31st October 2010, 09:20 AM   #927
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Hello Workhorse,

Nice PCB, Looks very professional!

I love it man!!!
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Old 4th November 2010, 05:32 PM   #928
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Hello ,
apex , can you tell me witch is the value of c39 , c40 ,c32,c36,c35,c34, c27, on vertex2500
and maybe the power disipation of r69 r70,R6 ,R88, And a more comun replacement for her156 ,bav20 , and anather thing can i replace 1n4744 with anu 15v zener diode ?
I'm asking this questions because i will make the pcb for this one.
Can vertex2500 be drive on 2 ohm loads? that will be more than 45Amps throught the speaker , and more than 7 amps trought one tranzistor , i think it excedes SOA capability .....
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Old 6th November 2010, 10:31 AM   #929
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hi apexaudio
greetings can you please tell me wattage of R 86 18 KILO OHMS
from emitter of T7 to emitter of T20
THANKING YOU
ANDREW LEBON
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Old 6th November 2010, 03:47 PM   #930
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Ok, I will share complete schematic of 'vertex' amp, but I suggest to start with H900.
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