Today's Message Index:
----------------------
1. 08:57 AM - Post light with no ground connection (barry speronello)
2. 11:21 AM - Re: Post light with no ground connection (Gary Vogt)
3. 05:00 PM - Re: Post light with no ground connection (n26390@AOL.COM)
Message 1
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| Subject: | Post light with no ground connection |
Hello everyone. After lurking for a couple of months, this is my first
post here. Last February I purchased a '76 Tiger (N74429) and I have spent
the past few months enjoying it. I am now at the point where I would like
to start addressing a few minor issues with it, and I could use your help
with them.
The first is that the post light on the Turn & Bank gauge doesn't light.
The problem appears to be that there is no ground connection to the barrel
of the post. I get 0-13 volts DC at the center terminal inside the post
(depending on the position of the dimmer) when I use another ground away
from the post. But there is no voltage if I try to ground the meter
anywhere along the inner wall of the post. I've tried scraping and
cleaning the inner wall with no improvement.
I thought that these posts were grounded thru the stud that threaded into
the gauge below (possibly with a nut threaded onto the stud behind the
flange of the gauge). But if that's correct, I can't see how it could fail
to ground itself. I've tried turning the post slightly, but that did not
correct the situation. Any thoughts about what's going on and how to
correct the ground are appreciated. If it involves going behind the panel,
though, it is probably above my current capabilities.
By the way, I'm very happy with the lighting otherwise. The plane has
about 4 gauges with internal lighting, and the rest of the circular gauges
have post lights. They are all very easy to see at night. Even without
its post light, the T&B gauge is easy enough to see. So I am not looking
to completely revamp my lighting for this small issue. But would like to
fix it, if I can.
Thanks in advance for your help.
Barry S(2)
Message 2
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| Subject: | Re: Post light with no ground connection |
Barry, replace the post light with a NuLite. -You'll be a lot happier.=0A
=0A=0A________________________________=0A From: barry speronello <bkspero@g
mail.com>=0ATo: teamgrumman-list@matronics.com =0ASent: Friday, May 4, 2012
8:54 AM=0ASubject: TeamGrumman-List: Post light with no ground connection
=0A =0A=0AHello everyone.- After lurking for a couple of months, this is
my first post here.- Last February I purchased a '76 Tiger (N74429) and I
have spent the past few months enjoying it.- I am now at the point where
I would like to start addressing a few minor issues with it, and I could u
se your help with them.=0A-=0AThe first is that the post light on the Tur
n & Bank gauge doesn't light.- The problem appears to be that there is no
ground connection to the barrel of the post.- I get 0-13 volts DC-at t
he center terminal inside the post (depending on the position of the dimmer
) when I use another ground away from the post.- But there is no voltage
if I try to ground the meter anywhere along the inner wall of the post.-
I've tried scraping and cleaning the inner wall with no improvement.=0A-
=0AI thought that these posts were grounded thru the stud that threaded int
o the gauge below (possibly with a nut threaded onto the stud behind the fl
ange of the gauge).--But if that's correct,-I can't see how it could
fail to ground itself.- I've tried turning the post slightly, but that di
d not correct the situation.- Any thoughts about what's going on and how
to correct the ground are appreciated.- If it involves going behind the p
anel, though, it is probably above my current capabilities.=0A-=0ABy the
way, I'm very happy with the lighting otherwise.- The plane has about 4 g
auges with internal lighting, and the rest of the circular gauges have post
lights.- They are all very easy to see at night.- Even without its pos
t light, the T&B gauge is easy enough to see.- So I am not looking to com
pletely revamp my lighting for this small issue.- But would like to fix i
t, if I can.=0A-=0AThanks in advance for your help.=0A-=0ABarry S(2)=0A
==================
Message 3
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| Subject: | Re: Post light with no ground connection |
See: http://grumman.net/archive/2008/msg03267.html
Roger Rucker
AA5A '78 HWO
-----Original Message-----
From: barry speronello <bkspero@gmail.com>
Sent: Fri, May 4, 2012 11:58 am
Subject: TeamGrumman-List: Post light with no ground connection
Hello everyone. After lurking for a couple of months, this is my first pos
t here. Last February I purchased a '76 Tiger (N74429) and I have spent th
e past few months enjoying it. I am now at the point where I would like to
start addressing a few minor issues with it, and I could use your help wit
h them.
The first is that the post light on the Turn & Bank gauge doesn't light. T
he problem appears to be that there is no ground connection to the barrel o
f the post. I get 0-13 volts DC at the center terminal inside the post (de
pending on the position of the dimmer) when I use another ground away from
the post. But there is no voltage if I try to ground the meter anywhere al
ong the inner wall of the post. I've tried scraping and cleaning the inner
wall with no improvement.
I thought that these posts were grounded thru the stud that threaded into t
he gauge below (possibly with a nut threaded onto the stud behind the flang
e of the gauge). But if that's correct, I can't see how it could fail to g
round itself. I've tried turning the post slightly, but that did not corre
ct the situation. Any thoughts about what's going on and how to correct th
e ground are appreciated. If it involves going behind the panel, though, i
t is probably above my current capabilities.
By the way, I'm very happy with the lighting otherwise. The plane has abou
t 4 gauges with internal lighting, and the rest of the circular gauges have
post lights. They are all very easy to see at night. Even without its po
st light, the T&B gauge is easy enough to see. So I am not looking to comp
letely revamp my lighting for this small issue. But would like to fix it,
if I can.
Thanks in advance for your help.
Barry S(2)
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