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Electric Circuit Help for Mod

N

n64man120

2[H]4U
Joined
Jan 11, 2004
Messages
3,498
I'm am planning a mod which I came up with on my own and have never seen before. Without going into much detail on it, I want to have a circuit with 2 buttons. For example a normal circuit for a CCFL woudl have 2 wires that go into the toggle switch. Basic, just flip switch and it works. I want to have 2 toggle switches on the loop, and when you flip either one it makes the light go on/off. I'm also doing the same mod for a pushbutton with the CD-Rom drive, but I figure it would be the same idea. How would I go about making this circuit work?
buttons.bmp
 
OK my bad, can a mod move it I guess? If anyone has advice for me please leave it ;)
 
so you want 2 switches for 1 light, and you want either switch to turn the light on right?



cathodeswitches.JPG





sorry for my piss-poor paint skillz

basically you want to wire up 1 switches in parallel, then when either one is on the lamp will light, or when both are on the lamp will light, and when both are off then the light is off.
 
The above diagram won't work. While either one will turn the cathode on, both switches will need to be switched off turn the cathode off. This diagram will function like having a light switch at the top and bottom of a staircase. Either one will turn the light on and off. It requires 2 SPDT (single pole double throw. I typoed in the diagram) switches.

wireing diagram.jpg
 
Xyrax said:
The above diagram won't work. While either one will turn the cathode on, both switches will need to be switched off turn the cathode off. This diagram will function like having a light switch at the top and bottom of a staircase. Either one will turn the light on and off. It requires 2 SPDT (single pole double throw. I typoed in the diagram) switches.

wireing diagram.jpg
Click to expand...

Thanks alot for the example, can you explain a bit more how it would be wired? I have to do this type of circuit for a toggle switch like for CCFL, and same type for a pushbutton switch like CD-ROM (I'd assume for the pushbutton one I can do the first parallel example?)
 
2sw.jpg


you can get both types of switches at radio shack (and they match)
you can do the CCFL with momentary push buttons like the cd drive, but it would require 2 relays.
 
The diagram compslckr posted is what you want for the CDROM drive using PTC (push to close) push buttons.

The diagram I posted is fairly straight forward if you know how to read schematics for electronis circuits. It's hard to explain the diagram in words. But I'll try.

The negative lead on the cold cathode runs right to the negative lead from the power connector. The positive lead from the cold cathode gos to the center post on switch 1. Then run a wire from the left post on switch 1 to the left post on switch 2 and run another wire from the right post on switch 1 to the right post on switch 2. Finally, connect the positive lead from the power connector to the center post on switch 2.

I am assuming the switches you will be using are standard. It is possible they may be odd and you will need to verify which post is which on the switches.

You will need to purchase new switches for the cathode. The switches that most cathodes come with are SPST (single pole single throw). Theya re either on or off. You need SPDT switches.
 
theshadow27 said:
2sw.jpg


you can get both types of switches at radio shack (and they match)
you can do the CCFL with momentary push buttons like the cd drive, but it would require 2 relays.
Click to expand...

Nice diagram. Should help clear things up for him. The only possible problem I see with it is you labeled the CDROM buttons as SPST when they should be momentary push buttons and you labeled the second switch for the CCFL as a toggle when it should be the same as switch 1 (SPDT).
 
Awsome all makes sense now. Hopefully I can get this mod underway. There are going to be wooden false buttons hiding the real buttons, so when you push the wood button in, it acts as the switch.
 
Part of this circuit is going to be disconnectable. Basicly the wires between both switches are connected in the middle by an ethernet jack. So, if i'm correct... if the circuit is cut short in the middle when the 2nd halve isnt connected it wont work? If so maybe i'll make a little box with an ethernet plug to complete the circuits when the 2nd set of switches aren't rigged up. Ideas?
 
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