[sdiy] how to view a quantizer staircase on a scope?

[Tom Wiltshire]

On 17 May 2009, at 21:43, Dan Snazelle wrote:

> 1, i connect the output of the quantizer to my vco input

No, output of quantizer to channel one of scope.

> 2. i connect the square output of the vco into the channel 2 of my  
> scope
>
> 3. i set trig mode to channel 2

Yep, both good.

> 4. i plug channel A of the scope INTO the output of the LFO i am  
> driving the quantizer with (a saw wave)

Nope, channel one of scope to output of quantizer (said this already).

> correct?????

Pretty much!!!

There's one thing I'm not clear about; are you driving the quantizer  
with an LFO or a VCO? Either way, let's call it the oscillator. You  
want the oscillator into one channel of the scope (with the  
triggering from that channel) and the quantizer output into the other  
channel. Then you can compare and contrast to your heart's content!

Probably a VCO is easier for testing on a scope than an LFO, since  
you'll be able to display a whole wavecycle without the image  
flickering (which tends to be a problem with slow waveforms).

HTH,
T.