8 replies to this topic

[mreibman]

Ok, I have several old external resistor controllers, DiFalco, Koford, Parma, etc.

 

What I would like to do is to remove the resistor, and put a modular connector on the cables, and put the opposite gender connector on the wires to the resistor - so I can use 1 controller and change the resistor in short order.t

 

I'm concerned about the amps I would need to be rated for in the connector, I thought 10A would be a safe bet.

 

Has anyone done this, and if so, what connectors would be recommended to do it? I have considered using a computer ATX power connector extension (20 or 24 pin) but I figure to only need about 8-12 pins at most.

 

Thanks in advance!

Mike

 

[Fred Zufelt]

I would think most connector would take 10 amps or so.

 

Unless you are running the real amp suckers

 

I like your idea of the power supply connector one plug and you are ready to go. An electronics store may have a connector closer to the number you need.

 

When I built my own external resistor controller (70'sLOL) I used a major wattage resistor with movable taps so if you needed a lower resistance you just moved the taps closer to the end so you didn't need multiple resistor. maybe Ho to group 12 may need a new resistor.

 

For single connector look at the RC world for their tube type ( 4mm and 5mm use shrink tubing) high current in the 30 and more amps

 

Fred Z

[old & gray]

I remember someone doing this in the 90's be for electronic controllers.

 

Try automotive connectors they should have enough current capacity.

[John Streisguth]

something like this? 

 

Eight Pole

Nine Pole

Ten Pole

Twelve Pole

[philk]

1, 2 and 3 ohm on plugs.

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[philk]

Connector pic, these might be Molex connectors , Allied Electronics and maybe others sell them.

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[Jim Difalco]

Did we just enter a time warp back to the 1980's?  External resistors? The Molex type connectors should be fine. They are usually made in 2 different pin sizes for standard and higher amp applications if I remember correctly.

 

I have the special crimper for the pins and an extractor to remove them but you can do it with just soldering the wires. Get them in the right place as they are a pain to remove the pins without an extractor.

[philk]

LOL, I loved the 80’s.

[mreibman]

So thanks for the input... I think those are molex.

The computer connectors are a micro molex.

And yes, it is a time warp. These are for play more than race.