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On-On-On

Started by kurtlives, September 09, 2008, 07:46:42 PM

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kurtlives

Ive got some DPDT on-on-on switches that work like this...


How would I wire my switch to work like this?


Thanks...

EDIT: The reason I ask all this is because my LED mode wont work....one of the LEDs is fully lit and the other one isn't glowing at all. They are both supposed to be "dead" though. They are only supposed to light up when I play... Any idea whats happening? That's the real problem, I don't think the switch is an issue.
My DIY site:
www.pdfelectronics.com

kurtlives

When I push the the switch in when in LED mode I get normal LED tone! I have to push the toggle though...

Bad switch? How would I wire it with that switch I showed before?
My DIY site:
www.pdfelectronics.com

John Lyons

If you push the toggle switch in and it changes the setting then yes, the switch is bad I would say.
Looking at the top diagram I'm not sure i've even seen that configuration.
Are you sure that's correct? Maybe that's all a part of the switch being bad.

If there are no jumpers soldered on the switch lugs then it should not alternate poles as in that middle diagram in blue.
The poles usually are thrown in sync.
Sometimes the switch action is opposite up to down, but still in sync

john

Basic Audio Pedals
www.basicaudio.net/

kurtlives

Yep the switch is definitely bad... pushing it in cuts the sound in and out.

Don't quite understand what your saying John. ???
My DIY site:
www.pdfelectronics.com

John Lyons

The switch in the diagram you give has two poles. Left and right. "Dual pole Dual throw" (DPDT)
The "common" connection of each pole is the middle Lug.
Moving the toggle up, middle or down selects a different "throw" (in your case a different diode arrangement).

In all the switches I've seen, when you move the toggle up or down both poles move in the same direction (with each switch movement).
In the example you gave, the middle position had a different pole position for each pole. (the blue lines are in different positions for the left and right poles)
Understand?






Basic Audio Pedals
www.basicaudio.net/

calpolyengineer

#5
There are switches that work as he has drawn. They are (as he wrote in the thread title) called On-On-On switches. I had to get a couple for rewiring my guitar (I put in a switch that controlled each pickup of my strat to either be turned on in series or parallel and in phase or out of phase.) They are pretty awkward to work with because one side works differently than the other. So even if your design is possible, it is VERY easy to wire it wrong. You have to check, and double check, and triple check that you are using the correct side of the switch for the correct connections. I had to resolder mine a couple times just because I didn't pay good enough attention.

Sorry I didn't really answer your question. I was just chiming in here to acknowledge that your switches do exist and to throw out the warning.

-Joe

Edit: I just went over your switching scheme and it should be fine. If it was wired wrong, the LED mode would work, as would the Marshall mode but in the center position LED mode would still be on and TS808 mode would never be on. Also,
Quote from: kurtlives on September 09, 2008, 08:59:14 PM
When I push the the switch in when in LED mode I get normal LED tone! I have to push the toggle though...

I dont understand exactly what you mean here. Is it that the LED clippers work correctly if there is pressure on the switch? If so then I would say you definitely have a bad switch. But as I said before, your switching scheme is correct in theory except that if the red dotted lines indicate the internal connections they ARE backwards.

kurtlives

Ya the switch is definitely faulty..pushing the actual toggle in affects it.

So I should just be able to wire my new switch like the old one your saying and it should work?
My DIY site:
www.pdfelectronics.com

The French connection

Quote from: kurtlives on September 10, 2008, 09:10:04 AM
Ya the switch is definitely faulty..pushing the actual toggle in affects it.

So I should just be able to wire my new switch like the old one your saying and it should work?

Sorry again for those switch Chriss. But they work as on the diagram, i got a bunch from ''hong gong super F@£¢¤er'' and they are all like that...I got to figure out how to use them since. What is worse is that ''Partspipe'' description say they are on-on-on...

http://cgi.ebay.com/PKG12-BLACK-MINI-DPDT-Guitar-ON-ON-ON-Toggle-Switch-BK_W0QQitemZ300256169795QQihZ020QQcategoryZ47076QQcmdZViewItemQQ_trksidZp1713.m153.l1262

Sorry again man!

Dan
I know, but the pedal i built does not boost...it just increases volume!
My picture files:
http://www.aronnelson.com/gallery/main.php/v/French+connection/
http://s193.photobucket.com/albums/z4/letournd/Pedal/

The French connection

Quote from: calpolyengineer on September 10, 2008, 01:01:03 AM
They are pretty awkward to work with because one side works differently than the other. So even if your design is possible, it is VERY easy to wire it wrong. You have to check, and double check, and triple check that you are using the correct side of the switch for the correct connections. I had to resolder mine a couple times just because I didn't pay good enough attention.

Absolutely! Those switch are ''chiral''...dextre or levogyre? That's the question!  ::)

Dan
I know, but the pedal i built does not boost...it just increases volume!
My picture files:
http://www.aronnelson.com/gallery/main.php/v/French+connection/
http://s193.photobucket.com/albums/z4/letournd/Pedal/

John Lyons

Hmmm, Ok. I guess I have just never seen that configuration.
Now that I think about it, if the switch was in the middle on both poles it would be on-off-on
since no contact is made like that.
More reason not to listen to me. :icon_redface:

john

Basic Audio Pedals
www.basicaudio.net/

earthtonesaudio

Don't sweat it, John.  Anytime I want to be humbled by switches I just look up any random guitar wiring diagram.  Instant headache.  :)

kurtlives

So I should be able to replace my old switch with a new one and it should work fine right? orienting the switch right.
My DIY site:
www.pdfelectronics.com

calpolyengineer

Yes. But first check continuity of your switch. The red dots connecting the poles of the switch in your second picture are NOT the way that my switches would connect in the middle position. If you are looking at the bottom of the switches I have they connect like the middle diagram of your first picture.

If your switches are like mine, you will have to mirror image the layout downwards. Meaning if the switch is being looked at from the bottom and numbered:

1   4

2   5

3   6

Then 1 and 5 are connected, 2 is still the input, 4 goes to the LEDs, 3 goes to the Marshall mode, and 6 goes to TS808 mode.

The way you have it know (for reference) is that 3 and 5 are connected, 2 is the input, 1 goes to the LEDs, 4 goes to TS808, and 6 goes to Marshall. I believe that this is wrong.

-Joe

kurtlives

Joe I tried that and got singnal...it was very low though and the pedal wasnt clipping...

Is my switch upside down?
My DIY site:
www.pdfelectronics.com

calpolyengineer

Was that in all positions? And did any positions work with your original setup. Off hand I can't really think of why the switch would affect the signal like that, unless you have a cold solder joint somewhere.

If the switch works in some positions, then cold joint is probably the cause. If the switch was wired backwards, both LED mode and Marshall mode should work, but TS808 would never get switched in and instead either LED or Marshall would remain on.

-Joe

The French connection

Finally figure it out...dont know if the diode are in the right orientation but i think it'll work...Is this diagram ok?

Those switch are nice finally! They give you three possibility of clipping, caps or whatever...
I know, but the pedal i built does not boost...it just increases volume!
My picture files:
http://www.aronnelson.com/gallery/main.php/v/French+connection/
http://s193.photobucket.com/albums/z4/letournd/Pedal/

calpolyengineer

That looks like it would work, but for some reason seems like it shouldn't ??? But its definitely worth a try.

Kurtlives original setup was to basically turn a DPDT On-On-On into a SP3T as has been discussed here: http://www.diystompboxes.com/smfforum/index.php?topic=70277.msg565033#msg565033 and in the post after it. (Thats where I got most of the info that I posted here)

French's setup is slightly different but looks promising, and easier.

-Joe

The French connection

Quote from: calpolyengineer on September 11, 2008, 12:11:14 AM
That looks like it would work, but for some reason seems like it shouldn't ??? But its definitely worth a try.

Kurtlives original setup was to basically turn a DPDT On-On-On into a SP3T as has been discussed here: http://www.diystompboxes.com/smfforum/index.php?topic=70277.msg565033#msg565033 and in the post after it. (Thats where I got most of the info that I posted here)

French's setup is slightly different but looks promising, and easier.

-Joe

So you have buyed the same switches as me, thinking it's a ''kind'' of SP3T and did'nt know what to do with the surprise tricky switch you received...But now i see the light! :)

Dan
I know, but the pedal i built does not boost...it just increases volume!
My picture files:
http://www.aronnelson.com/gallery/main.php/v/French+connection/
http://s193.photobucket.com/albums/z4/letournd/Pedal/

kurtlives

Tried a simple DPDT On On switch with diodes (LEDs) on one side and nothing on the other...

No sound but one of the LEDs is fully lite...

Fack...any idea what my issue is...it's not with the switch.
My DIY site:
www.pdfelectronics.com

John Lyons

The switch is just making a connection.
Take out your meter on "beep" (continuity) and test the switch.
Make a diagram of the switching scheme.

Make sure the diode clipping configuration is correct and you should be set.
Not much to figure out otherwise.

The diagram The French connection posted shows the orientation of the diodes.

john
Basic Audio Pedals
www.basicaudio.net/