Ps3 tender marker lights used for ps2 3volt engine.

I'd wire them in parallel to match the stock lights.  In series with a constant current source, the LED's are getting twice the current.

However, I question if they're wired in parallel.  The marker lighting for PS/2 3V boards is wired in series.

Also, If I have to change the wiring, sometimes I do add resistors to slightly dim the markers/class lamps. Obviously a "your choice" kind of thing but if the soldering iron is hot and you have to make changes anyway....

Also, no set value. Depending on the LED and desired effect, I just have to experiment and try to see what looks best. Somewhere between 50-330 Ohms usually to get the change I want. I just keep a resistor assortment handy.

As Vernon says, you can't go wrong with more resistance to dim them, only if you run too much current through them.

I'll have to take a look and get back to you on the original wiring for this tender's markers guys .

These are PS2 class light (green) LEDs connected to a PS3 boiler board marker/class light circuit. I just flipped the wires in the connector so the polarity matched. Works fine. I've done the same thing before without issue.

@Dallas Joseph posted:

I'll have to take a look and get back to you on the original wiring for this tender's markers guys .

Darned if you weren't right about the series wiring in this thing John.

I cut the shrink tubing away and found that there was no red to red or black to black just a soldered loop.

So I'm guessing it's alright to leave the in series ps3 donor lights in the tender .!?!

Another great assist on the forum.........Thank you JOHN , VERNON  and  LOU. 

@Dallas Joseph posted:

Darned if you weren't right about the series wiring in this thing John.

I cut the shrink tubing away and found that there was no red to red or black to black just a soldered loop.

I did that years ago for the same reason, I was curious how they were wired.

@gunrunnerjohn posted:

I did that years ago for the same reason, I was curious how they were wired.

Oh how every day the knowledge just keeps rolling in .

PS-1 were parallel, PS-2 up series.  Polarity position in molex different in PS-3 but otherwise can be made to work. G

@GGG posted:

PS-1 were parallel, PS-2 up series.  Polarity position in molex different in PS-3 but otherwise can be made to work. G

Yup George.    The red wire pin didn't look right going to the black wire pin .   I just pulled the pins out of the connector and made the adjustment.

Interesting info about the PS-1 different . Thank you.

I'm going to make a post ( WANTED DEAD OR ALIVE ) that I may need your help on .