Re: Scope attenuators 1,2,5, why bother?
- From: krw <krw@xxxxxxxxxxx>
- Date: Sun, 20 Jan 2008 10:29:59 -0500
In article <5db7a52b-5282-4610-b433-
445eb7b6f25f@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>, sci.electronics.design,
redbelly98@xxxxxxxxx says...
On Jan 16, 2:54 pm, Jan Panteltje <pNaonStpealm...@xxxxxxxxx> wrote:
So, while waiting for parts to arrive, I have been diddling sketches on an A4 piece
of paper, on how to design the the minimal cost attenuator, for the PIC scope I am planning.
Now I peaked at one scope I have here, and it has an 11 position switch
10mv, 20 mV, 50 mV, 100 mV, 200mV, 500mV, 11V, 2V, 5V, 10V, 20V
Now that sucks in a way, as counting to 5 is very difficult,
as we all think binary these days ;-)
Think of the 5, 50, etc. as 1/2 (times 10, 100, etc.). Now even you
binary buffs can be happy. :-)
Yep, but forget binary. 2, 5 (because it's half of 10), and 10 are
easy to multiply without using a calculator, something kids likely
can't get "their head around".
--
Keith
.
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