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Landing Gear Indicator LED's

 
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Frank



Joined: 10 Jan 2006
Posts: 69

PostPosted: Thu Apr 27, 2006 4:47 pm    Post subject: Landing Gear Indicator LED's Reply with quote

These are probly the best retrofit indicators for landing gear position you
can buy.

You can get them from www.newark.com

This link will get you the data sheet for both the bulbs and the bulb
holder...... http://www.dialight.com/pdfs/prodgroup/508-xx38-504.pdf

You can get incandescent bulbs but why? The LED bulb part numbers are listed
below and they last almost forever.

As most know, LED bulbs rarely if ever burn out so this retrofit for any
28VDC aircraft landing light system is one of the best available.
Part Number = 25F1471
Description = LED Lamp Color:Green; Lens Style:(H x Dia) 28.96 x 8.38 mm;
Luminous Intensity (MSCP):50ucd; LED Emitting Color:Green; Mounting
Type:Through Hole


Part Number = 25F1434
Description = LED Lamp Color:Red; Lens Style:(H x Dia) 28.96 x 8.38 mm;
Luminous Intensity (MSCP):10ucd; LED Emitting Color:Red; Lens Width:7.14;
Mounting Type:Through Hole
Part Number = 25F1291
Description = Lamp Socket (bulb holder); Terminal Type:Turret; Body
Material:Anodized Aluminum; Lamp Holder Type:Incandescent and LED Panel
Mount Indicator; Series:508 Series Lamp Holder

Another public service announcement from the YAK LINKS page
http://home.earthlink.net/~yak52driver


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N642K



Joined: 23 Jul 2008
Posts: 84

PostPosted: Wed Nov 05, 2008 4:38 pm    Post subject: Re: Landing Gear Indicator LED's Reply with quote

Did anybody do this? Most of the links are dead. I don't quite get how this conversion works. Ideas? Thanks in advance. Mike

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mark.bitterlich(at)navy.m
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PostPosted: Thu Nov 06, 2008 3:27 pm    Post subject: Landing Gear Indicator LED's Reply with quote

I have not done it, but the theory is a no-brainer really. You simply
take out the bulb holders that are presently there for your present
landing gear position indicator lights, and install the ones listed in
the link. One of the links is bad that is listed but this one:
http://www.newark.com/ is still good. Simply go to that site, and plug
in the part numbers listed in the thread and order the parts.

The general idea is that Russian light bulbs can be a pain to keep in
stock. If you pull the Russian light bulbs AND the bulb holders out,
(unsolder the wires) and then replace them with new bulb sockets and LED
replacement bulbs, they should darn near last forever and never need to
be changed.

It's a great idea. Wish I had thought of it! However, since I have
about 50 spare Russian bulbs on hand already, I will probably wait for
awhile before doing it.

Mark Bitterlich
--


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