Recent AT case find....

I just ripped the turbo switch out of an old AT case... It is an SPDT(?) switch (not momentary) and it has 3 wires attached to it. there is the black (ground?) red (12v?) and a white wire (??) anyway, the order from top to bottom was red white and black. There another row of pins that wires could attach to. I was wondering what could be done with these other pins?

I kind of wanted to do kind of a high speed/low speed button for a fan or something. I was wondering what the possibilities might be which 6 different wires...

The button has just an up position and a down position.

Thanks

LtPl4y3r

SO this is a plunger style switch right...cause I cant find anything on SPDT.

Red is +5v
Black is ground
White, I dont know...since its off a turbo switch its prolly has someting to do wit the controller or whatever that it connected to, do activate the turbo.

Yellow (12 V) - Black (gnd) - Black (gnd) - Red (5V)
white is also considered a ground wire...

ok... Lemme reword the question here. Assuming that the black is the ground(most likely) and the red and white are two different voltages. That would mean the the black is going to be "connected to the circuit no matter what and it will switch between the red and the white everything you hit the little button.

OR

Could it be that the red wire brings the power to the switch, and then when it is switched on the power then runs away through the red wire? Making it sort of a simple on and off switch that is grounded....

What do you think?

i think you should take a couple of close up pics and let us take a better look at what you have there... :-P

Ok, here it is, I hope this is helpful. I can take more if you need me too, but this should show you just about everything I was talking about.
http://ltpl4y3r.netfirms.com/turboswitch.jpg

Thanks,

LtPl4y3r

do you push it or turn it? either way i'm guessing that when you push/turn that switch, it switches between the black or red wire as the input, and the white wire is output... so like, if you hooked up a fan so that the ground was to any black wire, and the pausitive was to that white wire, and then made the black wire on the switch 12v, and the red wire 5v, i bet that changing the switch would alter between the fan running at 5v and 12v. the other three pins are most likely for if you want both of the fan wires running through it, but that just complicates things ;)


i hope that wasn't too confusing.... heh

Thanks kind of what I was hoping to do. BTW it is a pushbutton. an up setting and a down setting.

I have a 120mm fan that I hooked up to a keyboard lock, turns it on and off... I don't have it in my computer right now, because I got a new chieftec and no extra holes in it yet. But, I could use the keylock to turn it on and the pushbutton for high and low settings I guess...

I also have one last find I want to post, but it will be a minute, because I have to take the case apart to get a picture of it. its a digital readout, I guess it was for when they used to post the proc speed. 3 digit digital (like a clock). I'll have pics in a minute....

cool...

and also, if you'd rather have 7v and 12v on that fan instead of 5 and 12, you could hook up the fan so that the pausitive is connected to any 12v line (yellow) and then run the negative line of the fan through that switch. then you can alter between ground and 5v. that's what i do with toggle switches. also, toggle switches allow you to just turn it off if you leave it in a central position... might want to consider that for $3 at radioshack... heh

Here are two pictures of the little digital readout thing.
http://ltpl4y3r.netfirms.com/digi1.jpg
http://ltpl4y3r.netfirms.com/digiback.jpg

from right to left the text by the 13 pins is:
V+ V- S T- T+ GS P- P+ Key(covers two pins) H S L

This thing isn't much bigger than my thumb, but I would still like to use it. any ideas on how I might be able to get it to work? I just want to find something to do with it.

it would be cool to mount it on the front of your case displaying the temp of your CPU, but i have no idea how you would go about doing that...

that's what I was afraid of I guess I'll just have to start messing with it.

Thanks for your help with the button. BTW, I have two of those push buttons you were talking about. It has 3 pins.

Would I put 12 on 1, 5 on 2, then ground on 3? for 12v and 7 v mod? that would make 1 and 3 the variables I think.

if you want to find out how the switch works then use an ohm meter to map out what pins get connected to what when the switch is pushed

Ah, yes I had recent thoguhts on how to use those when i saw an old at case like what you got.. my suggestion is to see how they were originally connected to the motherboard and how it readout.. as for the switch I'd just try hooking that fan up to it on different prongs on the back of the switch and see if theres any difference..

Also, where's your source to get this case? :D I'd like to have one to play around with ;)

Keep us updated :)

Just incase anyone cares SPDT means SinglePoleDoubleThrow.

SinglePoleDoubleThrow usually center terminal is common and you can select from a circuit "on" in either position. This type of switch is good for an occasion that you want "one" or "the otherone" circuit on. It can easily do the job of spst by only using the center terminal and either of the other two.

I am glad I majored in Electronics :)

Quote:

---

Also, where's your source to get this case? I'd like to have one to play around with

---

I got this particular case off of ebay. And it didn't have a mobo. It also has an ATX switch... I don't know why it would have this readout on it. There was no mobo in it either... I got a little anxious one day and the only serviving AT mobo + PSU setup I had left was forced to be killed. I cut up a bunch of stuff. The mobo is in tact and I just don't have a working PSU to power it up with. and I wouldn't really know where to plug it into.

And Thanks to Colossus's explaination I figured out that the two switches I have around are in fact SPDT. So, I could use my little turbo switch to turn my 120 on and off, then maybe use the SPDT switches for high and low settings. The question is though. How would I wire it?

Like this:?
http://ltpl4y3r.netfirms.com/spdtswitch.JPG

The only problem I have is between the 1st wire and 3rd wire. I'm not sure how to connect them to the original 12v wire.

That would not work.
That would only short out the switch and cause a fire possible :)

I am assuming the fan only has 2 cables, and I would wire it like this:



http://home.attbi.com/~ckubryk/spdtswitch2.jpg

I can be wrong since it is almost 4am here in cali :)

That makes a lot of sense Colossus. I wasn't exactly sure what I was thinking. Thanks for your help. I just need to find a place to put my fan now. I REALLY don't want to cut a hole in my case... But, that's another story.

Thanks again