Does this switch wiring work for what I want?

Stompboxes circuits published in magazines, books or on DIY electronics websites.

Does this switch wiring work for what I want?

Postby JakeAC5253 » 26 Nov 2016, 20:12

I want to break a signal path which has no discrete components in it as of now. I want a 3 position toggle switch to have the options of Stock (signal pass through), Resistor 1 (signal path broken and routed into Resistor 1), and Resistor 2 (signal path broken and routed into Resistor 2). I've been pondering this, but I think I have figured out how to do it. Can anyone look this over and see if this looks correct? The switch is an ON-ON-ON DP3T switch. Forgive the sloppy Paint work, I'm a mechanic, not an artist :mrgreen:
You do not have the required permissions to view the files attached to this post.
Last edited by JakeAC5253 on 26 Nov 2016, 20:24, edited 1 time in total.
User avatar
JakeAC5253
Resistor Ronker
 
Posts: 326
Joined: 26 Oct 2010, 01:59
Has thanked: 19 times
Have thanks: 8 times

Re: Does this switch wiring work for what I want?

Postby JakeAC5253 » 26 Nov 2016, 20:19

Actually, I think I just corrected my own design. Try this one.

Actually I don't think this one works either. Maybe both jumpers combined? Now I've got myself confused...
You do not have the required permissions to view the files attached to this post.
User avatar
JakeAC5253
Resistor Ronker
 
Posts: 326
Joined: 26 Oct 2010, 01:59
Has thanked: 19 times
Have thanks: 8 times

Re: Does this switch wiring work for what I want?

Postby oldrenegade » 27 Nov 2016, 08:37

I believe a on-on-on toggle switch works as so.
You do not have the required permissions to view the files attached to this post.

For this message the author oldrenegade has received thanks: 2
deltafred (27 Nov 2016, 10:51), JakeAC5253 (27 Nov 2016, 17:55)
oldrenegade
 
Posts: 25
Joined: 17 Apr 2011, 15:51
Has thanked: 2 times
Have thanks: 5 times

Re: Does this switch wiring work for what I want?

Postby deltafred » 27 Nov 2016, 10:51

I've never seen a 3 position toggle switch with 8 connections (but they may exist). I have seen plenty as shown by oldrenegade.

To get your required combinations you would connect it as follows.

Input to pin 2
output to pin 5
Link 3, 4
R1 between 1,4
R2 between 3,6

This would give
on [on] on - signal straight through
[on] on on - R1 in series with signal
on on [on] - R2 in series with signal
Politics is the art of so plucking the goose as to obtain the most feathers with the least squawking. - R.G. 2011
Jeez, she's an ugly bastard, she makes my socks hurt. I hope it's no ones missus here. - Ice-9 2012

For this message the author deltafred has received thanks:
JakeAC5253 (27 Nov 2016, 17:55)
User avatar
deltafred
Opamp Operator
 
Posts: 1331
Joined: 06 Apr 2010, 17:16
Location: Yorkshire, England, UK
Has thanked: 257 times
Have thanks: 225 times

Re: Does this switch wiring work for what I want?

Postby JakeAC5253 » 27 Nov 2016, 16:05

Interesting. I did a google search of a DP3T switch, and it came up with this result.

Image

That's the assumption I was coming from. You've obviously solved the issue though using that switch style. Now is that considered an ON-ON-ON DPDT, or is that in fact what a DP3T is? I haven't found much documentation about these types of uncommon switches that go beyond basic two position SPDT and any variation thereof with more poles. The uncommon ones being DP3T, or 4P3T etc.
User avatar
JakeAC5253
Resistor Ronker
 
Posts: 326
Joined: 26 Oct 2010, 01:59
Has thanked: 19 times
Have thanks: 8 times

Re: Does this switch wiring work for what I want?

Postby deltafred » 27 Nov 2016, 22:53

JakeAC5253 wrote:Now is that considered an ON-ON-ON DPDT, or is that in fact what a DP3T is?

Yes, you are right, that is a DPDT on-on-on, the one you showed is one form of DP3T but as I said I haven't seen a toggle switch like that.
Politics is the art of so plucking the goose as to obtain the most feathers with the least squawking. - R.G. 2011
Jeez, she's an ugly bastard, she makes my socks hurt. I hope it's no ones missus here. - Ice-9 2012

For this message the author deltafred has received thanks:
JakeAC5253 (28 Nov 2016, 05:25)
User avatar
deltafred
Opamp Operator
 
Posts: 1331
Joined: 06 Apr 2010, 17:16
Location: Yorkshire, England, UK
Has thanked: 257 times
Have thanks: 225 times

Re: Does this switch wiring work for what I want?

Postby JakeAC5253 » 28 Nov 2016, 05:30

deltafred wrote:
JakeAC5253 wrote:Now is that considered an ON-ON-ON DPDT, or is that in fact what a DP3T is?

Yes, you are right, that is a DPDT on-on-on, the one you showed is one form of DP3T but as I said I haven't seen a toggle switch like that.


Awesome, thanks a lot for the help man! :thumbsup
User avatar
JakeAC5253
Resistor Ronker
 
Posts: 326
Joined: 26 Oct 2010, 01:59
Has thanked: 19 times
Have thanks: 8 times

Re: Does this switch wiring work for what I want?

Postby Dirk_Hendrik » 28 Nov 2016, 18:28

deltafred wrote:
JakeAC5253 wrote:Now is that considered an ON-ON-ON DPDT, or is that in fact what a DP3T is?

Yes, you are right, that is a DPDT on-on-on, the one you showed is one form of DP3T but as I said I haven't seen a toggle switch like that.

Neither have I. If one can find a switch in that functionality it's a slide switch disguised as a toggle.

Ontopic.
The usual 3 position toggles are On-off-On where the center contact(s) do not make a connection to the outer contact when in the middle position. When the application allows to change order from resitor-short-resistor to short-resistor-resistor a on-off-on switch will work like a charm. One outer position will be the short. The center position will be the highest resistor value required. The last position will be that "highest value" in parallel with a resistor that together creates the value for the lower required resistor value.

And the switch will probably be cheaper and less chunky ;-)
Sorry. Plain out of planes.

http://www.dirk-hendrik.com

For this message the author Dirk_Hendrik has received thanks:
deltafred (28 Nov 2016, 21:57)
User avatar
Dirk_Hendrik
Old Solderhand
 
Posts: 4072
Joined: 03 Jul 2007, 09:44
Location: Old Amsterdam
Has thanked: 238 times
Have thanks: 959 times


Return to DIY Stompbox designs

Who is online

Users browsing this forum: Silver Blues and 5 guests