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Cambridge vario audio box wanted



 
 
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  #1  
Old May 29th 19, 03:57 PM posted to rec.aviation.soaring
Geoff Minors
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Posts: 21
Default Cambridge vario audio box wanted

I am looking for the audio box that goes with the Cambridge vario. Anybody got one they can sell me?
Thanks
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  #2  
Old May 29th 19, 06:12 PM posted to rec.aviation.soaring
Charlie M. (UH & 002 owner/pilot)
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Default Cambridge vario audio box wanted

Any particular vario?
I believe the vario model sorta prelecates the model audio.
  #3  
Old May 30th 19, 12:59 PM posted to rec.aviation.soaring
[email protected]
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Default Cambridge vario audio box wanted

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
  #4  
Old May 31st 19, 12:24 AM posted to rec.aviation.soaring
Geoff Minors
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Posts: 21
Default Cambridge vario audio box wanted

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
  #5  
Old May 31st 19, 01:16 AM posted to rec.aviation.soaring
JS[_5_]
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Posts: 581
Default Cambridge vario audio box wanted

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
 




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