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Old 4th March 2006, 11:01 PM   #1
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Default Need help finding this part

I received this amp that was missing alot of pieces, i finally got to to the point where its missing one part. OP1 on the picture , i know its a optocoupler, but i need to know the part number. The amp is an audiobahn a275hct. If someone can that help that would be great. I think other audiobahn amps are made the same.

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Old 5th March 2006, 12:43 AM   #2
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I think it's likely a KTC117. I doubt that you'll find that part unless you can get it from audiobahn or from a manufacturer using a similar design like power acoustic.

If you can't get an exact replacement, a PS2503-1 may work.
http://www.cel.com/pdf/datasheets/ps2503.pdf
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File Type: gif optocoupler01.gif (19.8 KB, 68 views)
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Old 5th March 2006, 02:13 PM   #3
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Thanks perry, i was going to try a 2501-1 , that i have from a old alpine, but i see on the datasheet, that its different. I'll try your suggestion.
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Old 5th March 2006, 02:23 PM   #4
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It looks like the 2501 would work as well. The only difference I see is that the 2503 has an internal resistor (which isn't indicated on the schematic I have).
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