[sdiy] DSO recommendation please

[Ingo Debus]

Am 04.04.2010 um 14:52 schrieb Colin f:

> So what use is the 8-bit scope if it cant show you what you can  
> easily hear

No scope can show you what you can easily hear. A sine with fairly  
high THD can look very similar to a perfect sine. My favourite  
example is a perfect square wave compared to a rectangle with on/off  
times almost same. They are undistinguishable on a scope but easily  
distinguishable by ear.

OTOH scopes show you things you can't hear (saw up vs. saw down for  
example).

If a scope could show you only things you can hear anyway, you  
wouldn't need a scope at all, would you? ;-)

Even some very expensive top-of-the-line digital scopes have only 8  
bits resolution.

Ingo