2 in 1 wiring

All frequent questions on switching: true or not true bypass, transistor-based or mechanical.

2 in 1 wiring

Postby BlueTubes » 07 Jun 2012, 22:38

Two effects in one box with individual Bypass switches and a 3PDT toggle switch for reversing the order.

Image

Look ok?

For this message the author BlueTubes has received thanks:
Lucifer (12 Oct 2012, 16:57)
BlueTubes
 
Posts: 3
Joined: 18 Oct 2009, 12:37
Has thanked: 0 time
Have thanks: 2 times

Re: 2 in 1 wiring

Postby culbuto » 12 Oct 2012, 14:58

Hello,

I would like to know if that wiring is ok too.
I'm building an Anderton filter with a fuzz in one box. Both effects will have a foot switch and I would like a switch for patching the filter pre and post fuzz.

Thanks.
culbuto
 
Posts: 8
Joined: 10 Aug 2012, 09:51
Has thanked: 2 times
Have thanks: 0 time

Re: 2 in 1 wiring

Postby Lucifer » 12 Oct 2012, 17:06

I found the diagram a bit hard to fathom as it was shown, so I drew it out with all the wires added, then traced it out, using different colours for each switch combination - and IT WORKS !

You didn't label the switches, so I made the assumptions that: the lower left switch is footswitch 1 (for FX1), the lower right switch is footswitch 2 (for FX2) and the top one is the change-over toggle - and, as it all worked out, it seems my assumptions were correct.

Blue Tubes, you are a freaking GENIUS !

I've only been able to do a similar switch-over by using a 4-pole toggle switch.

Now I've got a whole spare pole to play with ! :twisted:
”Sex is great - but you can’t beat the real thing !” - The Wanker’s Handbook
User avatar
Lucifer
Cap Cooler
 
Posts: 671
Joined: 06 Apr 2011, 13:59
Location: Dorset, UK
Has thanked: 104 times
Have thanks: 95 times

Re: 2 in 1 wiring

Postby culbuto » 12 Oct 2012, 21:21

Lucifer wrote:I found the diagram a bit hard to fathom as it was shown, so I drew it out with all the wires added


Nice ! Please show me your draw I'm a noob ! ;)
culbuto
 
Posts: 8
Joined: 10 Aug 2012, 09:51
Has thanked: 2 times
Have thanks: 0 time

Re: 2 in 1 wiring

Postby Lucifer » 12 Oct 2012, 23:26

My sketch was just that, a quick and ready sketch, on a scrap of paper - so I don't have anything I can show you (sorry).

But all I did was take the original diagram, add a box for FX1 (with IN and OUT) below the bottom left switch, and a box for FX2 (with IN and OUT) below the bottom right-hand switch. Then I drew connections to all the points with the same name (eg, 'Switch 1 Out' to 'Switch 1 Out', etc) until I had the complete picture.

Note that there are two connections marked 'Input'. These both go to the input jack (not shown, but you can draw it in). There is one connection to the output jack (again not shown, but . . .)

Then I traced out the flow, as described previously, for all the switch combinations.

Try putting in the connections for yourself, and you won't be a noob any more. You don't need to trace out the flow as I've proved it for you - but it would be good practice for you.

Good luck.
”Sex is great - but you can’t beat the real thing !” - The Wanker’s Handbook
User avatar
Lucifer
Cap Cooler
 
Posts: 671
Joined: 06 Apr 2011, 13:59
Location: Dorset, UK
Has thanked: 104 times
Have thanks: 95 times

Re: 2 in 1 wiring

Postby BlueTubes » 13 Oct 2012, 00:28

I used this for a dual pedal I built a while ago (Timmy and Rothwell compressor) and it turned out great. Your assumptions were dead on Lucifer. The two switches on the bottom are footswitches (left side is One and right is Two) and the one above in the middle is a toggle. Just connect the pins that have the same name to each other and wire everything else to what they are labeled for.

Glad you guys like it. :)
BlueTubes
 
Posts: 3
Joined: 18 Oct 2009, 12:37
Has thanked: 0 time
Have thanks: 2 times

Re: 2 in 1 wiring

Postby culbuto » 13 Oct 2012, 22:34

Thank you very much.
culbuto
 
Posts: 8
Joined: 10 Aug 2012, 09:51
Has thanked: 2 times
Have thanks: 0 time

Re: 2 in 1 wiring

Postby culbuto » 15 Oct 2012, 11:13

The "LED" labels should be connected to the negative point of the led ? OK ?
Thanks in advance.
culbuto
 
Posts: 8
Joined: 10 Aug 2012, 09:51
Has thanked: 2 times
Have thanks: 0 time

Re: 2 in 1 wiring

Postby Lucifer » 15 Oct 2012, 11:46

That's correct. :thumbsup
”Sex is great - but you can’t beat the real thing !” - The Wanker’s Handbook
User avatar
Lucifer
Cap Cooler
 
Posts: 671
Joined: 06 Apr 2011, 13:59
Location: Dorset, UK
Has thanked: 104 times
Have thanks: 95 times

Re: 2 in 1 wiring

Postby culbuto » 25 Nov 2012, 10:07

Hello,

I tried to apply that wiring on a couple of veroboard and it doesn't works. Both boards have been verified and work when wired separatly.
So I think there is a problem with my outboard wiring but can't find it.
Do you see an error on my schematic please ?

Thanks.
You do not have the required permissions to view the files attached to this post.
culbuto
 
Posts: 8
Joined: 10 Aug 2012, 09:51
Has thanked: 2 times
Have thanks: 0 time

Re: 2 in 1 wiring

Postby BlueTubes » 25 Nov 2012, 16:42

The Diagram seems to be a bit confusing for people so I have edited it to show the signal flow and how it should work. From this, it should be fairly simple to trace the signal through the switches and understand how it all works. In the diagrams I have set the switch position in BOLD and then numbered switch tabs consecutively in the order in which the signal flow hits them. Hope this helps.

This first image shows Effect 1 selected as the first effect but both effects are bypassed in their individual switches

Image

This second image shows Effect 2 selected as the first effect and both effects are engaged in their individual switches

Image

I did these in inkscape and exported them pretty large so they could be zoomed without getting pixelation (hope that's right) but I am not sure what Photobucket will do to them. So I hope the numbers are readable.

For this message the author BlueTubes has received thanks:
culbuto (27 Nov 2012, 08:52)
BlueTubes
 
Posts: 3
Joined: 18 Oct 2009, 12:37
Has thanked: 0 time
Have thanks: 2 times

Re: 2 in 1 wiring

Postby culbuto » 16 Dec 2012, 10:46

This wiring scheme works fine.
Thanks you for the additional explanations :)
culbuto
 
Posts: 8
Joined: 10 Aug 2012, 09:51
Has thanked: 2 times
Have thanks: 0 time


Return to Switching & Wiring

Who is online

Users browsing this forum: No registered users and 3 guests