Cambridge vario audio box wanted

[Geoff Minors]

I am looking for the audio box that goes with the Cambridge vario. Anybody got one they can sell me?
Thanks

[Charlie M. (UH & 002 owner/pilot)]

Any particular vario?
I believe the vario model sorta prelecates the model audio.

[[email protected]]

On Wednesday, May 29, 2019 at 9:57:57 AM UTC-5, Geoff Minors wrote:
> I am looking for the audio box that goes with the Cambridge vario. Anybody got one they can sell me?
> Thanks

I think I have one from a previous installation, working when removed. Will take a look and let you know.

mike

[Geoff Minors]

On Thursday, May 30, 2019 at 5:59:10 AM UTC-6, wrote:
> On Wednesday, May 29, 2019 at 9:57:57 AM UTC-5, Geoff Minors wrote:
> > I am looking for the audio box that goes with the Cambridge vario. Anybody got one they can sell me?
> > Thanks
>
> I think I have one from a previous installation, working when removed. Will take a look and let you know.
>
> mike

Thanks

[JS[_5_]]

There was an AU-10 and AU-20. Believe the -20 fixed this problem and by now all have likely been modified, but...
While the unmodified AU-10 will work fine in a glass panel, using it in a metal panel will cause an electrical ground loop (two different paths to ground).
You may notice the vario deflecting when the radio transmits. If that happens, look at the ground trace near the mounts for the AU circuit board to see where to cut.
Just remembered a head-scratcher from 32 years ago?
Jim