Re: Speaking of Scopes....

At 16:43 12/05/2002 +0000, you wrote:

>--- In CAD_CAM_EDM_DRO@y..., "mariss92705" <mariss92705@y...> wrote:
>
> > First off, a scope is nothing more than a voltmeter that shows what
> > happens to voltage versus time. What you want in a good scope are
> > three things; a sharp focus, good writing speed and an excellent
> > trigger.
>
>From: Peter <prenolds@s...>
>
> > Sorry to put a damper on this suggestion
> > but the winscope is bandwidth
> > (top frequency) limited to 20KHz.
> > This would be ideal for looking at
> > audio signals but with step pulses
> > down in the 1-5 uSec range you really
> > need a 20MHz scope (minumum)to
> > see the transitions clearly.
>
>If one is not so ambitious, only wish to use the scope as a trouble-
>shooting tool, say to see if the Gecko is stepping OK, at say, low
>stepping rate, would the Winscope be up to the job? It seem an
>economical solution for not-so-ambitious home hobbyist.

There's a company in the UK called "Pico Technology" that sells PC-based
scopes with bandwith up into the MHz - see:

http://www.picotech.com/

They also do an entry-level device called "Dr Daq" that can (amongst other
things) be used as a 'scope for relatively low frequency signals (audio for
example):

http://www.drdaq.com/index.html


Regards,
Tony