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DIY Bass Boost Cmoy Headphone amplifier KIT JRC4556 opamp
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DIY Bass Boost Cmoy Headphone amplifier KIT JRC4556 opamp

Quality of product is high-level in component architecture and performance.
Also availability and t...
Date Added: 23/01/2017 by Carlo Todde


DIY ULTIMATE Cmoy Hi-Fi Headphone amplifier KIT Guaranteed !!!
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DIY ULTIMATE Cmoy Hi-Fi Headphone amplifier KIT Guaranteed !!!

Awesome amplifier! Fred was great with communication - I actually got one of those built before he t...
Date Added: 22/09/2015 by Cosmin Gauran


DIY 12AU7 Valve Cmoy Headphone amplifier KIT
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DIY 12AU7 Valve Cmoy Headphone amplifier KIT

I was after a headphone amp. and saw this kit. I already had a 12AU7 and a 12V 1A regulated plug pac...
Date Added: 19/07/2015 by Paul Taylor


DIY RA1 18volt CMOY Headphone Amplifier
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DIY RA1 18volt CMOY Headphone Amplifier

Perfect kit. Everything there, works great, and was a TON of fun to build. Thanks Fred (if you're a ...
Date Added: 20/02/2015 by kevin murray


DIY RA1 18volt CMOY Headphone Amplifier
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DIY RA1 18volt CMOY Headphone Amplifier

I had wanted one of these things for ever, and I finally got one for Christmas. To start off, let me...
Date Added: 07/01/2014 by Wes Murrell


DIY RA1 18volt CMOY Headphone Amplifier
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DIY RA1 18volt CMOY Headphone Amplifier

I had wanted one of these things for ever, and I finally got one for Christmas. To start off, let me...
Date Added: 07/01/2014 by Wes Murrell