Mth proto 1 led marker lights

The LED's are not really 6V, the green ones drop around 2.5-2.6 volts, and I believe those are in series.  The power you're seeing is current limited for the LED's or it would cook them.

The LED's in question are usually the Lumex 2mm ceramic LED's, they're white ceramic bodies with a tiny colored lens on the front.  This is a red one, they come red, yellow, and green.  However, they've been obsolete for several years and are hard to find nowadays.

I just bought a dozen of those from surplusgizmos.com. Arrived yesterday.

They actually are packed in Digikey packages with DK part numbers. I searched DK using those part numbers, and they're no longer sold there.

And as GRJ mentioned, those marker LEDs need to be in series. Thats why you're seeing the port output 6V even though they're only 2V leds.

You won't need a resistor either, since it's built into the output on the PS1 board.

Thinking here you buy LED's from forum sponsor Evans Designs. Use center rail power. Different diameter sizes available as well as different colors. Also AC/DC and up to 18 volts. Evans really has some cool stuff

Thank you guys for all of the good info. I ordered the lumex red leds from surplusgizmos. Now I will need to tie the positive side on both leds together and also tie the neg sides on both leds together and have the positive go to the red and the neg go to the black on the connection I have pictured right? Thank you again

No, that wiring is in parallel.  You need to wire them in series.

Ok. I wasnt sure between parallel and series but I got it now! Thanks for pointing out the difference.

Also @66Ruffo: I hope you've been saved.  (You'll see what I mean when you get the shipment from Surplisgizmos.  Took me aback for a moment! )

Definitely string them together positive-to-negative when you do it.  They are super tiny, and you will absolutely need heat-shrink tube that is just small enough to slide over your solder connection and the leads, or the leads will short against each other.

A "trick" on using the 2mm ceramic LED's.  One issue is you have to keep the total size of the insulated leads smaller than the 2mm ceramic head of the LED for many of the places they go.

I use the insulation from #30 Kynar wire to slip over one lead, then use my smallest heatshrink over both leads, that results in the smallest diameter splice.  I also use really tiny #28 or #30 wire to connect to them as well.

Ok. Got it with the heat shrink and positive to negative!  All right im looking forward to my shipment! Thanks for the website Jeff the coaster guy and they took paypal which was super easy.

Thanks also for the trick gunrunnerjohn!

Yep Im looking at the leads from the leds that came from mth and I can see how tight they have to be to fit in the marker light holes