Triangle VCO help please

[Harry Bissell]

Of course... in most cases the scope probe should ALWAYS be set to 10X mode...
this greatly reduces scope probe loading.  Just consider how much of a load 1
megohm
is in some of these circuits and you see what I mean.

I never use 1X mode unless the signal is so small that I cannot see it at all in
10X....

Now Magnus knows this and this is not for his benefit... he's just on the reply
list  :^)

But others (newbies) on the list may not be aware of the problem. YOUR SCOPE can
screw up your circuit... the more advanced the circuit, the greater the danger!!!
10X probes are noit just meant for high voltages... they are for low loading !!!

H^) harry

Magnus Danielson wrote:

> From: mark verbos <a0284520 at addcom.de>
> Subject: Re: Triangle VCO help please
> Date: Sun, 26 Nov 2000 15:03:26 +0100
>
> > as it turns out I made the biggest of all chump mistakes. The scope lead was
> > switched to 10x mode. so the waves were actually the right size. doh@!#$$%&*
>
> This manifests one of the oldest rules in the game:
>
> When you get a measure result, veryify carefully the means of measurement.
>
> Naturally, I see this rule being broken on a regular basis at work and
> I get called in for the reality check. This way I get to see many
> people look very stupid on a regular basis too, but that's naturally
> another story.
>
> > thanks magnus
>
> Anytime.
>
> Cheers,
> Magnus