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Looking for a pic of the wiring of a Q149 Signal Selector
MUFF WIGGLER Forum Index -> 5U Format Modules  
Author Looking for a pic of the wiring of a Q149 Signal Selector
EPTC
Hi, all - I love all dotcom products, including the Q149. I am curious about making a lot of passive switches, though, ideally at half size of Q149 (so, basically, one instead of a pair) - I'd like to make about 20 separate switches, so the price will get high if I don't make them myself. I have a plan to make a bunch of selector switches all over the studio.

Guessing it's four-prong switch with three of them connected to each input, but if you have a Q149 could you take a quick photo of the reverse side? I can't imagine there's any PCB involved, but would be happy to be surprised, too.

Or do you know of any simple wiring diagram for a 3:1 signal switcher?

Thanks much.
blw
EPTC wrote:
I'd like to make about 20 separate switches, so the price will get high if I don't make them myself. I have a plan to make a bunch of selector switches all over the studio.


I don't have the answer for you, but I would love to hear all about your plans. I'm about to move and am obsessed with thinking about signal distribution ideas throughout my new studio space. I've mainly considered trunk lines and patchbays and would enjoy hearing other ideas.
EPTC
Thanks blw! - Hope you have a nice move and cheers on the new studio!

I really like the idea of having a bunch of on and off switches everywhere.
ranix
I've got one in a box somewhere, I'll encounter it soon. I just moved and am reassembling my modular, working through it one box at a time. I'll post a pic when I run across it if nobody gets to it first
EPTC
Thank you, ranix!

Happy reassembling, too.
HowDoIKnow
Hi

I am re-cabineting my modular and had a chance to shoot the back of the q149.

hdik
EPTC
HowDoIKnow THANK YOU SO MUCH!!!!

That explains all of it. A hundred muffwiggler emojis in appreciation.

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HowDoIKnow
Gosh, PayPal is usually my preferred method of thanks, but that was incredible! hihi hihi
EPTC
Ha, paypal! No way - MWEmoji is the new cryptocurrency! Thanks again.



Never maintain cash savings again
EPTC
Those pictures were very helpful - If anything they explain the cost of the module and show the quality of work in a dotcom item, even a passive switch.

Looks like that's a 12-position rotary switch!

https://www.circuitspecialists.com/10wa364.html



Presumably, you could make a 12:1 switch selector, which is fun to think about.

It does seem possibly over-built there for three inputs, though. I understand Roger added an off-position for each and the connector for the top and bottom. But it looks like the design can be made for just the switches part (3:1) with something like this:

https://www.elliottelectronicsupply.com/surplus-rotary-switch-3-positi ons-single-pull-solder-terminals-right-angle.html

diophantine
That 3-position switch you linked is definitely not what you want.
Quote:
First Position: All terminals are in common.
Second Position: Terminals 1 & 3 are common.
Third Position: Terminals 1 & 2 are in common.

I mean, you could set it up in modular-land, but it would be for: send input signal to outputs A & B, send input signal to output A, or send input signal to output B.

FYI - Roger probably uses the same rotary switches for all of his modules, for the bulk discount. Also, a 3-position switch isn't really any cheaper than a 12-position one. With common ones there is a notched washer that you move under the nut to choose the correct number of positions, so the switch can be any number of positions.

Here's the type that you want, at SmallBear:
http://smallbear-electronics.mybigcommerce.com/26mm-enclosed-1p2-12t/
 (Of course you can also get them at Mouser, Tayda, etc.)
EPTC
diophantine wrote:
That 3-position switch you linked is definitely not what you want.

Also, a 3-position switch isn't really any cheaper than a 12-position one. With common ones there is a notched washer that you move under the nut to choose the correct number of positions, so the switch can be any number of positions.

Here's the type that you want, at SmallBear:
http://smallbear-electronics.mybigcommerce.com/26mm-enclosed-1p2-12t/
 (Of course you can also get them at Mouser, Tayda, etc.)


Ah! I hadn't even considered the specs, was just going visual - Ha, thanks for keeping me from the mistake!

And thank you for the information on the washer. That's really useful to know about.

Appreciated, particularly with the link to the right part! (Learning switches presently, thanks for catching my error)
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