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Mic and Headset Jack Installation

 
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Jeff Smith



Joined: 10 Jan 2006
Posts: 9
Location: Knoxville, TN

PostPosted: Sun Feb 26, 2006 1:03 pm    Post subject: Mic and Headset Jack Installation Reply with quote

Group,

I've read the AeroElectric connection, searched the archives, etc. but can't
develop an answer to the following question: when I went to install my jacks I
found that I could either drill a ~3/8" hole that would allow the threaded
post of the jack to pass through, or b) drill a slightly larger hole that would
allow the threaded post PLUS the small shoulder to pass through.

I purchased some of the isolation washers from B&C and they slip easily over
the threaded post of the jack but won't go down over the shoulder at the base
of the post.

If I use the ~3/8" hole it appears the threaded portion of the jack could
contact the panel as it passes through it, even with use of the isolation
washers. So I guess I'm not sure what the isolation washers are doing.

Need some help ......, Thanks,

Jeff
RV-7A
smithbkn(at)aol.com


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stein(at)steinair.com
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PostPosted: Sun Feb 26, 2006 2:05 pm    Post subject: Mic and Headset Jack Installation Reply with quote

If you have the higher end jacks, then the "shoulder" on the threaded part
of the jack is still part of the center ring or threaded portion. The goal
of the insulated washers is to completely isolate that part of the jack
(center ring) from the metal panel and airframe ground... It's still a good
idea to use the washers on the jacks, so drill the hold large enough to
allow the insualting washers.

Cheers,
Stein.

[quote]--


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nuckollsr(at)cox.net
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PostPosted: Sun Feb 26, 2006 7:35 pm    Post subject: Mic and Headset Jack Installation Reply with quote

At 04:02 PM 2/26/2006 -0500, you wrote:

Quote:


Group,

I've read the AeroElectric connection, searched the archives, etc. but can't
develop an answer to the following question: when I went to install my
jacks I
found that I could either drill a ~3/8" hole that would allow the threaded
post of the jack to pass through, or b) drill a slightly larger hole that
would
allow the threaded post PLUS the small shoulder to pass through.

I purchased some of the isolation washers from B&C and they slip easily over
the threaded post of the jack but won't go down over the shoulder at the base
of the post.

That isn't what they're supposed to do.

Quote:
If I use the ~3/8" hole it appears the threaded portion of the jack could
contact the panel as it passes through it, even with use of the isolation
washers. So I guess I'm not sure what the isolation washers are doing.

Drill a 1/2" hole. Put the extruded washer on the jack first, extrusion
facing up. Insert jack in hole from behind and place flat insulating
washer on over the jack's barrel followed by the flat metal washer and
finally the screw.

The insulating washers will sandwich the panel material while the
extrusion keeps the jack centered in the hole and isolated from
the panel.

Bob . . .


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