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09-28-2007, 08:33 PM
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#1
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Rivet Master 
1978 31' Excella 500
Venice
, California
Join Date: May 2006
Posts: 1,067
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The next L.E.D. mod.
Decided to high tech the step (over door) light on the old Silver Pullit, so...
Using a pre drilled circuit board cut to the shape of the lens, I mounted 19 super white 10mm l.e.d.s wired in series in groups of three, each group adjusted for voltage/current with a 100 ohm resistor. The odd man out was wired separately with a 470 ohm resistor. I potted the back side with polyurethane to protect the wiring and used a bulb socket so that it would plug into the existing recepticle. It draws about .4 amps and is bright as ----! 
__________________
"Not all who are laundering are washed" say Bill & Heidi
'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
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09-28-2007, 10:14 PM
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#2
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Rivet Master 
1973 23' Safari
1977 23' Safari
2018 25' Flying Cloud
Palmer Lake
, Colorado
Join Date: Oct 2005
Posts: 4,092
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can't believe you retained the bronze age bulb socket as a connector...
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09-28-2007, 10:22 PM
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#3
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4 Rivet Member 
2000 34' Excella
Tucson
, Arizona
Join Date: Apr 2006
Posts: 375
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That is bright! and a good idea too.
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09-29-2007, 12:40 AM
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#4
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Rivet Master
2006 25' Safari FB SE
Huntington Beach
, California
Join Date: Apr 2006
Posts: 2,293
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I like it
Great project Bill. You could get a job at Radio Shack.
John
__________________
Travel is in my blood, adventure is my passport, aluminum is my favorite construction medium, and therefore, an Airstream was my destiny.
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09-29-2007, 06:03 AM
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#5
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Remember, Safety Third
1973 27' Overlander
Catfish Corners
, Georgia
Join Date: Oct 2004
Posts: 5,720
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I did something similar on my '73. Bought 4 "cool" blue LED's made to be mounted on the exterior of an automobile. I wired one in the over-the-door light like you did. Then a buddy made a mount that fits above the step. Wired all of that to the step light switch inside. No where as bright as yours, but I like the "Airstream" blue light glow in the dark.
Great looking work, Bill. Can you point us to any other LED work you've done?
Jim
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09-29-2007, 06:31 AM
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#6
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Rivet Master
2011 34' Classic
Westchester Cty.NY
, / Miami FL
Join Date: Jul 2007
Posts: 3,122
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were any light bulbs harmed in the creation of this device? ;-)
nice work!
__________________
Ricky
2012 F150 Super Crew 5-1/2' bed Ecoboost 4x4 3.73 elec. lock diff. Propride hitch
give life. kidney & pancreas transplant 9/9/06
Ingrid-my unofficial '"World's Oldest Streamer" 1909-2008 R.I.P.
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09-29-2007, 09:55 AM
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#8
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Rivet Master
1978 31' Excella 500
Venice
, California
Join Date: May 2006
Posts: 1,067
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Of course, retaining the "bronze age" socket allows one to revert to OEM style at the twist of a wrist. It also simplifies wiring. A truly thrifty person would use a burned out bulb 
__________________
"Not all who are laundering are washed" say Bill & Heidi
'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
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09-29-2007, 03:35 PM
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#9
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Silver Mist
Currently Looking...
Riverhead
, New York
Join Date: Aug 2006
Posts: 3,011
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.+1
__________________
Bob
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09-29-2007, 04:11 PM
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#10
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Rivet Master
2003 22' International CCD
Kiln
, Mississippi
Join Date: Dec 2005
Posts: 2,779
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Question..... Where did you get the individual LED's?
__________________
Michael & Tina with Layla and Preston BZ The family has grown. 2003 22' INTERNATIONAL CCD
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09-29-2007, 04:49 PM
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#11
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Rivet Master
1978 31' Excella 500
Venice
, California
Join Date: May 2006
Posts: 1,067
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MPJA.com or just look for 10mm super bright leds.
10mm WHITE 15000mcd LED-MPJA, Inc.
__________________
"Not all who are laundering are washed" say Bill & Heidi
'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
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09-29-2007, 05:40 PM
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#12
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Rivet Master
1978 31' Excella 500
Venice
, California
Join Date: May 2006
Posts: 1,067
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generic diode wiring
Here's the basic idea for ganging l.e.d.s to make a fixture. I used 19. Left over diodes, one or two can be wired with an individual 470 ohm resistor.
__________________
"Not all who are laundering are washed" say Bill & Heidi
'78 Excella 500,"The Silver Pullit". vacuum over hydraulic disc brakes, center bath, rear twin. '67 Travelall 1200 B 4X4 WBCCI 3737
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09-29-2007, 09:47 PM
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#13
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Rivet Master
2011 34' Classic
Westchester Cty.NY
, / Miami FL
Join Date: Jul 2007
Posts: 3,122
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so, should i buy the 100 pack or 500 pkg. of l.e.d.s? ;-)
__________________
Ricky
2012 F150 Super Crew 5-1/2' bed Ecoboost 4x4 3.73 elec. lock diff. Propride hitch
give life. kidney & pancreas transplant 9/9/06
Ingrid-my unofficial '"World's Oldest Streamer" 1909-2008 R.I.P.
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