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Old 11th January 2011, 02:18 AM   #131
Mamak is offline Mamak  Malaysia
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Quote:
Originally Posted by apexaudio View Post
What circuit use OPA1632?
i want build balanced line driver
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Old 11th January 2011, 08:23 AM   #132
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Quote:
Originally Posted by Mamak View Post
i want build balanced line driver
You can use TL072, like in this circuit for examle
Balanced Transmitter and Receiver II
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Old 11th January 2011, 12:56 PM   #133
Mamak is offline Mamak  Malaysia
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Quote:
Originally Posted by apexaudio View Post
You can use TL072, like in this circuit for examle
Balanced Transmitter and Receiver II
can you help me convert from opa1632 pin for tl072 pin?i want build balance line driver from this circuit. DIY audio balanced preamp
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Old 11th January 2011, 01:54 PM   #134
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Originally Posted by Mamak View Post
can you help me convert from opa1632 pin for tl072 pin?i want build balance line driver from this circuit. DIY audio balanced preamp
TL072 can not be use in this circuit instead OPA1632.
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Old 24th January 2011, 01:56 AM   #135
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Originally Posted by alex mm View Post
Hi Mile ,
No, I have corrected, adding two jumpers on PCB . I intend to layout PCB for SR amplifier ....nice schematic . Thanks for sharing so many projects .
Regards Alex .
Hi Alex,
I must redesign your pcb, pins for transistors are too small, and BD241/242 are in revert position to heatsinks.
Regards
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File Type: jpg APEX Shunt Regulator.jpg (213.4 KB, 2545 views)
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Old 24th January 2011, 02:59 AM   #136
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Shunt Regulator Component Layout
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File Type: jpg APEX Shunt Regulator PCB.jpg (335.8 KB, 2432 views)
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Old 28th January 2011, 09:21 PM   #137
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VR 1k must be replaced with 4k7, output voltage can be set from +/-12V up to +/-24V, outputs must have heatsink.
Attached Images
File Type: jpg APEX 2x24V Aclass PSU.jpg (422.0 KB, 2159 views)
File Type: jpg APEX Shunt Regulator.jpg (213.4 KB, 1973 views)
File Type: jpg P1270111.JPG (406.9 KB, 1814 views)
File Type: jpg P1270110.JPG (429.2 KB, 613 views)
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Old 29th January 2011, 12:35 AM   #138
juma is offline juma  Germany
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Quote:
Originally Posted by Mamak View Post
mr apex.what other number for opa1632?its hard to find
THS4131 is pin-to-pin and functionally compatible with OPA1632.
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Old 29th January 2011, 10:11 AM   #139
nix is offline nix  Philippines
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Originally Posted by apexaudio View Post
Rail voltage for SR200 is +/-75V, I prefer sound of bass from this amplifier topology.
hi apex

sir do you have pcb and component side of this amp? can you share with us. thanks in advance....

regards
nix
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Old 29th January 2011, 05:50 PM   #140
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hi apex

sir do you have pcb and component side of this amp? can you share with us. thanks in advance....

regards
nix
I will share DIY version when it's finish, you can use 'coolet' pcb for SR50.
Regards
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