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Old 26th August 2008, 07:07 AM   #741
Nenola is offline Nenola  Finland
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Here's my first amp using TDA7375 chip and driven in 3-channel mode with 18V supply. Case is from old ATX-power supply. All parts exept the pot and the switch is recycled, so this is cheap one.
As a temporary solution I'm using a separate commercial eq/lpf-filter until I get my own lpf-filter for the sub done.
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Old 2nd September 2008, 09:28 PM   #742
juluska is offline juluska  Ukraine
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Default MY FIRST DIY KIT

I just finished my first amplifier. I was looking for a new amplifier, my old Musical Fidelity A1 was almost dead, and after months buying magazines and listening expensive amplifiers I opted to build two monoblocks from www.chipamp.com kit. The result is impressive. I am surprised that an amplifier so easy to build sounds as well. This amplifier surpasses any commercial amplifier I've never heard and certainly better than my old A1. The box was bought in www.diyenclosures.com and cables and connectors in www.takefiveaudio.com, the rest in www.rs.com.
I've also build the passive preamplifier of the photo, with afour poles input selector.

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Old 2nd September 2008, 09:28 PM   #743
juluska is offline juluska  Ukraine
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Default more fotos

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Old 2nd September 2008, 09:28 PM   #744
juluska is offline juluska  Ukraine
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Default more

www.diyenclosures.com
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Old 2nd September 2008, 09:28 PM   #745
juluska is offline juluska  Ukraine
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Default ac inlet

ac inlet with filter
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Old 2nd September 2008, 09:28 PM   #746
juluska is offline juluska  Ukraine
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Default passive preamplifier for my chipamp

a simple passive preamplifier. i supppse there was enough with a two poles selector.
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Old 3rd September 2008, 12:00 AM   #747
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Very nice work.

Is that a blue velvet pot? What is the model of the switch?

Cheers
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Old 3rd September 2008, 12:18 AM   #748
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Thumbs up Nice job!

very nice juluska!.
I know for sure these fellas can put a big fight against many commercial amps.I have compared side by side with some good commercial amps against my LM3875 integrated amp and the only thing I can say is:
These amps can kick some a$$ for sure!. I love my amp!.
Enjoy your amp buddy.

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Old 3rd September 2008, 09:34 AM   #749
juluska is offline juluska  Ukraine
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The swith is a Lorlin, rs code 320-219, only 1,58 euros. Is a four poles, three ways, Ag plated contact:
http://docs-europe.electrocomponents...6b8007a1e8.pdf
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Old 3rd September 2008, 09:41 AM   #750
juluska is offline juluska  Ukraine
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Default POTENTIOMETER

This is the potentiometer:
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