---------------------------------------------------------- TeamGrumman-List Digest Archive --- Total Messages Posted Fri 05/04/12: 3 ---------------------------------------------------------- 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 _____________________________________ Time: 08:57:11 AM PST US Subject: TeamGrumman-List: Post light with no ground connection From: barry speronello 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 _____________________________________ Time: 11:21:51 AM PST US From: Gary Vogt Subject: Re: TeamGrumman-List: 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 =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 _____________________________________ Time: 05:00:54 PM PST US Subject: Re: TeamGrumman-List: Post light with no ground connection From: n26390@AOL.COM See: http://grumman.net/archive/2008/msg03267.html Roger Rucker AA5A '78 HWO -----Original Message----- From: barry speronello 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) -= - The TeamGrumman-List Email Forum - -= Use the Matronics List Features Navigator to browse -= the many List utilities such as List Un/Subscription, -= Archive Search & Download, 7-Day Browse, Chat, FAQ, -= Photoshare, and much much more: - -= --> http://www.matronics.com/Navigator?TeamGrumman-List - -======================== -= - MATRONICS WEB FORUMS - -= Same great content also available via the Web Forums! - -= --> http://forums.matronics.com - -======================== -= - List Contribution Web Site - -= Thank you for your generous support! -= -Matt Dralle, List Admin. -= --> http://www.matronics.com/contribution -======================== ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message teamgrumman-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/TeamGrumman-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/teamgrumman-list Browse Digests http://www.matronics.com/digest/teamgrumman-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.