[Elecraft] K2 - Isolation box construction for digital

[Tim N9PUZ]

I would buy a) isolated jacks, b) mount regular jacks in plastic to 
isolate them, or c) use an all plastic box to isolate them. That was 
you don't have to remember to use a specially wired cable to preserve 
the isolation.

Tim, N9PUZ

On Monday, February 22, 2010 11:04 AM [GMT+1=CET],
dw wrote:

> My instincts would agree with Bob on this question.
> You might consider using stereo jacks with (Ring & Tip) only
> wired and use the GND as sheilding.
> Or you could omit the connector and wire direct out with a
> rubber grommet in the box wholes.
>
> N1BBR
> ---------------------------------------------------------------------------
> If you do that, you can leave out the isolation transformers -
> and the whole
> box for that matter.
>
> You're "un-isolating" them by connecting the grounds together.
>
> Bob W5OV