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Old 10th January 2012, 08:45 AM   #1111
AndrewT is offline AndrewT  Scotland
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+-40Vdc into 8ohms speakers for domestic use, not party levels, is probably going to be OK with 1pr of output devices.
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Old 10th January 2012, 09:12 AM   #1112
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Quote:
Originally Posted by opor View Post
Hi,
Can 2SC5200+2SA1943 be replaced with TIP3055+TIP2955 ? I just want to build AXs in light version (low cost output) .Power rail is not exceed +-40 VDC.
Use TIP35C/36C or BD249C/250C, with TIP2955/3055 use +/-30 VDC.
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Old 10th January 2012, 10:08 AM   #1113
AndrewT is offline AndrewT  Scotland
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into what speaker load and for what duty?
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Old 10th January 2012, 11:10 AM   #1114
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Originally Posted by opor View Post
or TIP35+TIP36
or BD911+BD912 and similar TO220 for 'low cost output'
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Old 10th January 2012, 05:51 PM   #1115
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apex i can not find ferit coil 15mm size for speaker teriinal do i need it or i can use only 16 turns of wire
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Old 10th January 2012, 05:55 PM   #1116
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Originally Posted by leonatax View Post
apex i can not find ferit coil 15mm size for speaker teriinal do i need it or i can use only 16 turns of wire
Use only 16 turns of wire, you don't need ferit coil, it's air coil inductor.

Last edited by apexaudio; 10th January 2012 at 06:01 PM.
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Old 10th January 2012, 07:02 PM   #1117
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Originally Posted by AndrewT View Post
into what speaker load and for what duty?
Into 4ohms or 8ohms speakers for domestic use.
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Old 10th January 2012, 10:45 PM   #1118
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apex i can not find ferit coil 15mm size for speaker teriinal do i need it or i can use only 16 turns of wire
I suggest to use this circuit for turn on/off mute if you use speaker terminal with triac dc protect.
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Old 11th January 2012, 03:16 PM   #1119
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thanks
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Old 15th January 2012, 11:43 AM   #1120
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Default Bottom Side

Quote:
Originally Posted by presbel View Post
Hi QQ12e5k1,
Do you have bottom layout of your pcb? Can you share it?

Regards.
Sorry,I'm late to share it..

Regards
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