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Old 6th February 2013, 07:46 PM   #1821
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Quote:
Originally Posted by sonal kunal View Post
I connected amp in series with 10Ω resistance, when nothing seems to burn I put fuse and tried to adjust bias but was not able to, even winding trim-pot to full. Amp was playing music but with crossover distortion at low volume.
Nice work, replace 1k resistor (base-colector BD139) with 1k5 and you can set bias.
Regards
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Old 11th February 2013, 03:14 AM   #1822
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my ax 20 with 5 pair
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Old 11th February 2013, 05:37 AM   #1823
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hi sir mile
i want use this OCP shematic for another amp
i use AX12 in my car with + -30VDC

http://upload.tehran98.com/img1/mwlg...7im5mcuknf.pdf

i want use this shematic for a class AB OCP section
my supply voltage will be + - 35 VDC in this amp
can i drive a relay with S output pin ?
my relay is like AUD600 power section relay
it must protect in 3A and when the out put is shorted
which one off resistors must be change ?
thanks
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Old 11th February 2013, 07:46 AM   #1824
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Quote:
Originally Posted by Hadighorbani View Post
hi sir mile
i want use this OCP shematic for another amp
i use AX12 in my car with + -30VDC

http://upload.tehran98.com/img1/mwlg...7im5mcuknf.pdf

i want use this shematic for a class AB OCP section
my supply voltage will be + - 35 VDC in this amp
can i drive a relay with S output pin ?
my relay is like AUD600 power section relay
it must protect in 3A and when the out put is shorted
which one off resistors must be change ?
thanks
You can find PSU with protect in this thread post #95. This PSU have DC, OC protect and clip leds.
100W Ultimate Fidelity Amplifier
Regards
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Old 11th February 2013, 07:48 AM   #1825
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Quote:
Originally Posted by ahmadfay View Post
my ax 20 with 5 pair
Click the image to open in full size.

Click the image to open in full size.
Nice work, what about sound?
Regards
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Old 11th February 2013, 03:39 PM   #1826
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Quote:
Originally Posted by apexaudio View Post
You can find PSU with protect in this thread post #95. This PSU have DC, OC protect and clip leds.
100W Ultimate Fidelity Amplifier
Regards
thanks
but i want creat OCp only and simpel like my link
is it work in OCP section ?
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Old 12th February 2013, 01:33 AM   #1827
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sound quality is very clear (thanks Apex), almost like B500, but the power is much greater. Future I will make tripple darlington B500 version, pcb driver is ready, just plug components.
pray for good luck, regards
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Old 13th February 2013, 04:36 PM   #1828
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Location: hyderabad
MY all new apex AX-14 for 5.1 channel
5 channel Ax-14
SR200 for subwoofer
Click the image to open in full size.
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Old 13th February 2013, 04:38 PM   #1829
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AX-14
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Old 13th February 2013, 05:12 PM   #1830
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Quote:
Originally Posted by shravanth View Post
MY all new apex AX-14 for 5.1 channel
5 channel Ax-14
SR200 for subwoofer
Click the image to open in full size.
Nice work.
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