• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

DIY Kit AudioResearch ARC Tube Preamplifier Balanced/RCA IN&OUT,12AU7/ECC83+ECC88/6DJ

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Luciman

Luciman

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Joined 2006
#1
DIY Kit AudioResearch ARC Tube Preamplifier Balanced/RCA IN&OUT,12AU7/ECC83+ECC88/6DJ

Hi there,

till now I did more reading than writing but today I need some informations about this what is called a ARC-preamp kit.

https://www.aliexpress.com/item/1005002553663346.html?spm=a2g0o.cart.0.0.58ad3c00858gF4&mp=1

Even if I doubt that there is a real complete ARC schematic behind it, there could at least be some approaches. But the more important point is that there is also a suitable housing for the kit which makes it more interesting.

I have already created a few tube projects (HiFi- & guitar-amps) but the housing work with normal tools is not that easy.

Does anybody know what's behind that circuit diagram in terms of audio (the periphery pcb is more of a welcome addition)? Is it worthwhile?

Cheers
Claus
 
#2
Shematic

Hello!
See the picture.
 

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#3
Does not look like any ARC pre-amplifier design I have seen or worked on. This is a serious misrepresentation of what it actually is.

They have misappropriated the ARC brand name to promote their own product which is a violation of international IP/trademark law and also may make it subject to removal here as IP infringing.
 
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