[Coco] It's a small win, but a win nonetheless

[RETRO Innovations]

On 3/10/2017 9:05 PM, Dave Philipsen wrote:
> So are you running with just the comparator, no opamp before it?  Is 
> your comparator input de-coupled from the cassette out signal going 
> into it?
A 1M pulldown on the input fixed the issue, so it seems the voltage 
divider needs a small tweak.  But, I did add a decoupling cap, and the 
signal went from .6-1.3V to 0-.5V, so I need to redo the divider all over.

Is there a good reason to use the decoupler?  I get lots more noise in 
the signal to the comparator when I do so.