<div dir="ltr">yeah the 150 is the same as the shell I built, difference is only the, well, the shell</div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, May 6, 2018 at 12:45 PM, Ben Bradley <span dir="ltr"><<a href="mailto:ben.pi.bradley@gmail.com" target="_blank">ben.pi.bradley@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I looked, I presume this is the device. If not, it's a good example:<br>
<a href="https://www.banggood.com/Orignal-JYE-Tech-DS0150-15001K-DSO-SHELL-DIY-Digital-Oscilloscope-Kit-With-Housing-p-1093865.html?cur_warehouse=USA" rel="noreferrer" target="_blank">https://www.banggood.com/<wbr>Orignal-JYE-Tech-DS0150-<wbr>15001K-DSO-SHELL-DIY-Digital-<wbr>Oscilloscope-Kit-With-Housing-<wbr>p-1093865.html?cur_warehouse=<wbr>USA</a><br>
<br>
Scrolling down to the pic with the input BNC connector, there's text<br>
on the device that says "Max 50Vpk." That is the actual maximum input<br>
signal level the device is rated for. This reminded me of what I<br>
already knew but was distracted by the "20v max" claim, that the scale<br>
setting has no relation to the max input voltage.<br>
<br>
The "20v" setting is just a scale setting, it means 20 volts per<br>
division. On a "full size" scope screen each division is 1 cm and<br>
there are 10 vertical divisions, 5 above and 5 below the center zero<br>
line.. I'm guessing divisions on this display are 0.5cm, but<br>
regardless, a 20V peak signal would only go one division above and<br>
below the zero line on the 20V setting.<br>
<div class="HOEnZb"><div class="h5"><br>
On Sun, May 6, 2018 at 3:28 AM, Quincas Moreira <<a href="mailto:quincas@gmail.com">quincas@gmail.com</a>> wrote:<br>
> I’m going by the visual range. In 20v setting my 10v bipolar signals look way small. They look good in the 2v setting. I’m thinking this is a scaling thing, maybe I’m wrong<br>
><br>
> Sent from my iPhone<br>
><br>
>> On May 6, 2018, at 00:45, <a href="mailto:rsdio@audiobanshee.com">rsdio@audiobanshee.com</a> wrote:<br>
>><br>
>> I’m curious: what makes you think that it can handle more than the manufacturer claims? They could easily be using parts with an absolute maximum of 20 V, which means that’s it. I wouldn’t recommend feeding it more voltage than they say it can handle.<br>
>><br>
>> Brian<br>
>><br>
>><br>
>>> On May 5, 2018, at 7:57 PM, Quincas Moreira <<a href="mailto:quincas@gmail.com">quincas@gmail.com</a>> wrote:<br>
>>> Just measured, the voltage range goes well beyond what's needed for modular. it says 20v, but I think that's wrong and it's way more. My VCOs look good in the 2v setting.<br>
>><br>
><br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">Quincas Moreira<br>Test Pilot at VBrazil Modular</div>
</div>