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trinityamps.com • View topic - My Triwatt build - help?

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PostPosted: Fri Mar 27, 2020 3:02 am 
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Thanks for the update. Glad you got to try the amp with so many different speakers and it sounds great with all of them.

With the treble pot, it has two fairly long wires heading back to the board. You could try re-routing them so they aren't so close to other wires.

And maybe it's just hard to see exactly where the wires go in the photo, but it looks like the wires heading back to the board from the treble pot and the bass pot are reversed!

Make sure the wire from the 220k resistor goes to lug 3 on the treble pot and the wire from the 47n capacitor goes to lug 2 on the bass pot.


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PostPosted: Fri Mar 27, 2020 12:29 pm 
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PostPosted: Mon Mar 30, 2020 1:27 am 
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Not really surprised that the wiring is OK. If the wires were reversed, I think you would have known long ago because the tone stack wouldn't work as expected. They do look reversed in your photo, though!

Not really sure what to suggest next. Maybe change C6. It's interesting that the treble issue doesn't happen with the overdrive engaged. Does it matter where the master volume control is set when you hear the treble control act up?


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PostPosted: Thu Jul 16, 2020 12:26 pm 
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PostPosted: Tue Jul 28, 2020 11:07 am 
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At this point, my suggestion is to review your lead dress. Shortening, Separating wires and crossing wires at 90 degrees. I've not had this issue in my builds.
Check out the picture for clues.

triwatt inside.JPG
triwatt inside.JPG [ 1.48 MiB | Viewed 545 times ]


and here's a large hi res picture


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Web: www.trinityamps.com. Facebook: facebook.com/trinityamps. Twitter: @trinityamps


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PostPosted: Mon Nov 02, 2020 12:27 pm 
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Which version of the FC12 are you using ceramic or almico?

Thanks,
Kev


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