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4.92 out of 5
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  • 07/04/2021

    A nice retro aesthetic for my little tube amp. I tried to find larger saw meters but in the end these do the job perfectly. The integrated indicator is a filament lamp of 12V maximum and not removable so to avoid burning it, do not hesitate to under voltage it to 9V with a gradual rise in voltage if possible .. and the deal is done. A very nice final appearance and the card is fully adjustable to customize it to the final amplifier. No need to take out sophisticated measuring devices for adjustment. Increase the sound of the amp to the limit of audible distortion and set the deviation of the meters to maximum.

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  • 23/07/2021

    Arrived after one month.. All works great, really nice LED background light..

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  • 10/04/2019

    Performed a quick test and the meters worked flawlessly. Easy to wire and use. The back light on meters is very nice and gives the meters that antique glow with ambiance. Can't wait to use them in my amplifier build. Great product and well constructed.

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  • 20/11/2019

    muito bom

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  • 02/10/2018

    Meters work well, easy to setup, the backlighting is done with actual lamp bulbs, not LEDs, so the look is nice and warm.

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  • 05/08/2020

    It is much smaller than I expected, very tinny have this in mind before purchasing

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  • 26/10/2019


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  • 20/05/2019

    Good..... Thanks...

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  • 21/01/2018


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  • 19/01/2021

    Wonderful DIY kit! and ease to use. I have installed it on a DIY tube amplifier that I have just build. I connect the input to the 8 ohm output of the transformers. For now I' am hearing music from my PC and after calibrating the swing I found it accurate compared to signal indicator of the soundcard. I have a question though: I have receive version 5.0 of the circuit board that has an additional trimmer. I don't know what is for.

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