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INSTALLING LM-3S in PROTO 2-000

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atsfguy:
Tom,
 Micro Mark does have miniature connectors but they require soldering with a small iron. They come in strip form and you cut off the number of pins/ sockets that you need.
 I have never purchased these so other than everything I have bought at Micro Mark has been quality merchandise, I can’t say how good or easy to work with these are.
 I hope this helps you.

Cecil

G8B4Life:

--- Quote from: Tom on January 11, 2021, 08:08:20 AM ---I was hoping those connectors were somewhat common things, but have not been able to find on internet (except JST-2 pin) let alone confirm they are compatible.

--- End quote ---

They are actually more common than you'd think but you have to look in the right places, your not going to find them at the local electronics store for instance. The big electronic places like DigiKey, Farnell, element14 etc sell them, usually in packs of say 10, 50, 100 and so on.

To find out what you have you'll need to do some measuring and reading. It's likely to be either the SH (1.0mm pitch spacing) or ZH (1.5mm pitch spacing) series. JST (http://www.jst.com/home21.html) has spec sheets for everything so it shouldn't be hard to work out which connectors they are.

Once you've identified which connector it is there's a few of options (I though of an extra couple):

- If they are the 1.0mm pitch SH series then all you can really do is to make your own adapter motherboard (SH socket to ZH plug).

- If they are the 1.5mm pitch ZH series then you might be able to get the 9 pin plug and pop the connectors out of the 8 pin and insert them into the 9 pin (you'd have to reverse the procedure to put it back to original) or looking on JST's website I found this: http://www.jst-mfg.com/product/detail_e.php?series=289. This is a wire to socket connector series that will accept the ZH series plug. You could possibly make a custom socket to plug adapter harness however crimping the pins to the wires is "not a relaxing task" apparently.

- Tim

Alan:
As Tim says, the solution is in the JST catalog somewhere. Your mission is to find it.

What we mere mortals commonly call an adapter harness is known in the trade as wire-to-wire. Start your JST search there.

As last resort you can solder individual wires to the pins of a board receptacle (wire-to-board header) and cover each pin with heat shrink.

faithie999:
Tom--
is it the 8-pin plug shown in your photo that you're trying to find?
if so, is it the same thickness and pin spacing as the 9-pin connector used on the LM's?

Tom:
Tim, Alan, faithie999,

Thank you for the comments, I will keep at it. 

I am trying to find 2, 4 and 8 pin adaptors, the ones that are on the decoder now, so I can wire them up to Ring WH-9 and WH-6 wiring harnesses.  I would then plug them into the other end of the 2, 4, and 8 pin plugs attached to the tender.  That way I do not destroy that wiring, and the decoder could easily be reinstalled.  I have not attempted to measure the pin pitch yet.

I had found the Digi-Key web site a few days ago and actually received a nice response from a sales rep.  It helped a little with some specifics like pitch that Tim mentioned that need to be figured out as well as two links.  Digi-Key’s products listing is beyond extensive.

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