[Elecraft] [K3] Shorting K3 PHONE jack outputs (WAS OT: Stereo to mono adapters)

[James Sarte (K2QI)]

One last experiment showed that with a standard stereo 1/4" to 1/8"
reducer with a mono 1/8" device connected to the end, ring and sleeve
showed a 0 ohm load.

So it seems to me that the RS adapters that short ring and tip rather
than ring and sleeve should be OK for use with the K3.

Tnx,
James K2QI

On Fri, Dec 3, 2010 at 11:53 PM, James Sarte (K2QI) <k2qi.nyc at gmail.com> wrote:
> BTW, one thing I noticed is that both stereo to mono adapters I
> purchased short ring and tip together rather than ring to sleeve.
> Since both hot signals are combined, isn't there still a load being
> presented to the right channel amp?
>
> I know some adapters will short ring to sleeve, thereby presenting a 0
> ohm load to the amp.  In this case, that isn't happening.
>
> My ohm meter shows when using a stereo to mono adapter while connected
> to the mono DSP, ring and sleeve show a 22 ohm load; tip and sleeve
> show a 22 ohm load, and ring and tip have a 1 ohm load as they're
> shorted.
>
> Seems safe to me?
>
> Tnx,
> James K2QI
>
>
>