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Old 08-31-2010, 09:30 PM
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LED and bulb mix?

I have a quick question..... I need to put directionals on my '23 Bucket T.
The car already has standard two-filament bulb tail lights, so I was wondering
if I could add LED lights to the front and use the same standard flasher as I will use on the back?
Thanks for any help.
Keith

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Old 08-31-2010, 10:14 PM
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If the flasher works with what you have now it will certainly work if you add LEDs to the mix. If you change the rear lights to LED then you'd have to get a different flasher.
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Old 08-31-2010, 10:22 PM
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Thanks Crownver,
That's good news. I appreciate your help.
Keith
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Old 09-01-2010, 10:21 AM
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You will need to replace the front parking lights with a double filament type socket and bulb similar to the rear.
You will need a turn signal switch for the steering column.
The standard (thermal type) flashers depend on the current draw of the bulbs to work. The LED bulbs don,t provide enough current draw to operate the flasher.
Get on designed for use with LEDs.
Most of the above parts can be found here: www.speedwaymotors.com
See attached wiring diagram.

vicrod
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File Type: pdf gm turnsignals.pdf (55.2 KB, 66 views)
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Old 09-01-2010, 11:46 AM
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Quote:
Originally Posted by Vela
I have a quick question..... I need to put directionals on my '23 Bucket T.
The car already has standard two-filament bulb tail lights, so I was wondering
if I could add LED lights to the front and use the same standard flasher as I will use on the back?
Thanks for any help.
Keith
I also have a '23 T-bucket and I installed a solid state flasher unit to replace the thermal unit . At $7.oo it cost a little more but is not dependent on current draw to determine how fast it flashes . At any rate , it works for me .
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Old 09-01-2010, 12:25 PM
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LED Flasher

Thank you Adantessr,
I know about that flasher but I want to mix LEDs with my existing filament lighting.
I don't think I can get both working on one type of flasher.

I kinda like the small bulb in-line idea ~ but which line do they go in, the hot or the ground?
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Old 09-01-2010, 12:35 PM
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Thanks Vicrod,
that wiring diagram is helpful.....
I appreciate it.
Keith
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Old 09-01-2010, 12:37 PM
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Vicrod,

He's going to use the filament bulbs that are existing on the rear, so he wouldn't need an LED flasher if he's only going to add LED lights to the front.

Of course he would have to wire the turn signal circuit into the brake light circuit. Correct?
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Old 09-01-2010, 01:05 PM
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LED and bulb mix?

I have a question about using filament bulbs in-line with the LEDs as suggested above.
Can I use very small bulbs (to also act as indicator lights on the dash) or would they not have enough resistance?
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Old 09-01-2010, 01:25 PM
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You need at least 2 filament type bulbs to cause enough current draw to use a thermal type flasher.
A solid state (LED) flasher does not depend on load to flash at the preset rate. They have an internal timer circuit to determine the flash rate. They will work with any type of lamp up to max ampere rating of the flasher.

The front turn signals will be switched (in the column switch) separately from the rear. The rear turn signals are the same filament as the brake lights.
See the diagram I sent earlier. Each lamp has a dedicated switch. When you move the handle LEFT two switches close which sends power to the front and rear lamps. Ditto the RIGHT.
If you hit the brakes the side that is not signaling will light but the signal will continue to flash.

Not sure what you mean by "small bulb in-line idea" but bulbs are not normally wired in series. Turn signal circuits are normally in the positive (hot) side.

The dash indicator lights can be wired in parallel with the front turn signal bulbs regardless of type. Small LED bulb packages are readily available to work on 12 volts.

vicrod

Last edited by vicrod; 09-01-2010 at 01:31 PM.
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Old 09-01-2010, 08:32 PM
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Quote:
Originally Posted by Vela
Thank you Adantessr,
I know about that flasher but I want to mix LEDs with my existing filament lighting.
I don't think I can get both working on one type of flasher.

I kinda like the small bulb in-line idea ~ but which line do they go in, the hot or the ground?
They will all work with the solid state flasher . Mix and match all you want and the flasher speed stays the same .BTW See the attatched photo of my '23 T-bucket
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Old 09-02-2010, 12:49 AM
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Yes you can mix them, I did it on my S10, if you have "hyperflash" or they flash way too fast there is a resistor pack at the auto parts store for $10 it puts the load on the flasher that the LED's wont.
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Old 09-02-2010, 01:08 AM
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Thanks adantessr,
Very nice '23 ~ looks like you need some good breaks there on the mountain!
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Old 09-02-2010, 01:10 AM
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And thanks Muddi for you info as well.... I'll ook into that flasher.
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Old 09-02-2010, 08:28 AM
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Quote:
Originally Posted by Vela
Thanks adantessr,
Very nice '23 ~ looks like you need some good breaks there on the mountain!
LOL . Never realized that it looked like I live on a mountainside in that picture . It is actually in the hills of South Charleston . Not as bad as it looks. Here's a photo from the other side .
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