How do I connect those wires?(pic included)

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SUMMARY

The discussion focuses on connecting wires to a brushless motor using copper junctions and heat shrink tubing. The correct method involves soldering the wires into the cup-like ends of the banana jack plugs, then applying heat shrink tubing over the connection to ensure insulation. Users clarified that the cross in the copper junction is designed for secure wire insertion, and the heat shrink should be positioned to avoid heat exposure during soldering. The motor is intended for DIY projects, specifically for experimenting with transistors and radio control systems.

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Jarfi
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I got my new motor, it's from some random brand, and It seems like I have to stick the wires to the connections myself. So I am presented with 3 copper junctions, plain wires and 3 shrink tubes. I was wondering if I am supposed to solder the wires to the copper junction, then shrink the tube around that but what seems the most straight forward is that there is a cross in the copper junction and I was,

wondering if I am supposed to stick the wires inside this cross, without any soldering, then shrink the heat shrink tube around that area. How do I assemble this simple looking connection?

EDIT: Seriously though, these junctions don't make sense, I can't just stick the wires in this tiny spaced cross there, and I know the other hole is to accept inputs, I guess I just solder this into oblivion?
 

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Jarfi said:
I got my new motor, it's from some random brand, and It seems like I have to stick the wires to the connections myself. So I am presented with 3 copper junctions, plain wires and 3 shrink tubes. I was wondering if I am supposed to solder the wires to the copper junction, then shrink the tube around that but what seems the most straight forward is that there is a cross in the copper junction and I was,

wondering if I am supposed to stick the wires inside this cross, without any soldering, then shrink the heat shrink tube around that area. How do I assemble this simple looking connection?

EDIT: Seriously though, these junctions don't make sense, I can't just stick the wires in this tiny spaced cross there, and I know the other hole is to accept inputs, I guess I just solder this into oblivion?

The end of the metal plugs with the cross are meant to be pushed into holes somewhere -- they look very similar to "banana jack" plugs. You put the heat shrink tubing over a wire and push it back far enough that it won't be heated by soldering the end of the wire. Then put the end of the wire in the open "cup-like" end of the plug. Solder it in the cup, let it cool, then put the heat shrink over the cup end plus the wire and shrink it with a heat gun (or a lighter).

What does the motor look like? Where are you meant to plug in these connectors?
 
Some examples:RCA DT92CWB Banana Plug Connector (males):

https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcQDvJx-G8BWtpStTxTud8kyqbyGEL8Dx8Y5lAOREfll7AT5d_uz

images?q=tbn:ANd9GcQDvJx-G8BWtpStTxTud8kyqbyGEL8Dx8Y5lAOREfll7AT5d_uz.jpg


5.5mm CopterX Banana Plug (male):

http://www.ehirobo.com/shop/images/products/CX-PLUG-BANANA-5-5MM-M_01.jpg

http://www.ehirobo.com/shop/images/products/CX-PLUG-BANANA-5-5MM-M_01.jpg

3.5mm Connector (male and female):

http://img.alibaba.com/wsphoto/v0/452858833/100x3-5mm-Gold-Bullet-Connector-Banana-Plug-for-Battery.jpg

100x3-5mm-Gold-Bullet-Connector-Banana-Plug-for-Battery.jpg
 
Last edited by a moderator:
berkeman said:
The end of the metal plugs with the cross are meant to be pushed into holes somewhere -- they look very similar to "banana jack" plugs. You put the heat shrink tubing over a wire and push it back far enough that it won't be heated by soldering the end of the wire. Then put the end of the wire in the open "cup-like" end of the plug. Solder it in the cup, let it cool, then put the heat shrink over the cup end plus the wire and shrink it with a heat gun (or a lighter).

What does the motor look like? Where are you meant to plug in these connectors?

Thanks I've already done just that(ended up figuring it out from pictures of other motors). I bought the motor for cheap (12 dollars). It's a normal motor with a propeller, I'm working on a DIY project from scratch (a drone). This motor is just for expermineting and testing transistors, radio control etcetera. It's a brushless motor.

http://www.thanksbuyer.com/image/cache/data/sku-20885-1-600x600.jpg a picture of said motor.
 
Last edited by a moderator:
Most likely this can only be answered by an "old timer". I am making measurements on an uA709 op amp (metal can). I would like to calculate the frequency rolloff curves (I can measure them). I assume the compensation is via the miller effect. To do the calculations I would need to know the gain of the transistors and the effective resistance seen at the compensation terminals, not including the values I put there. Anyone know those values?

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