• 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.

Hi I am making tube amplifiers. I can offer you pictures of a few of them. I bought the EL84 output amplifier box from China. I made the others in Tur

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The thread title says he built it. Pretty impressive for a diy job. I would like more details on how this was accomplished. Especially the professional lettering.

No harm in calling his home-made creation “Dynaudio” that I can see, as he doesn’t infringe on the loudspeaker manufacturer.
 
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Nice builds! And about the safety issue, most DIY tube amplifiers (mine included) do not pass CE regulations. According to EN60065, exposed tubes aren't allowed because: a) the surface is above 60 degree celsius. b) Pushing most tubes with the normalized "test finger" (a stick with a rounded tip) with a 2 newton force is enough to dislodge the tube and expose high voltages. The tube cage must be secured with screws, because it must withstand both the pushing with the test finger (20N !) and the pull with the test hook. The wire connecting the top caps must also withstand a push with 2N force, so it must be secured below the chassis. This is a common sense rule that was mostly followed even in the past. I don't know UL requirements, but I believe that they are a little bit less restrictive.