4 pole/4position rotary switch

[Leslie West]

Hi,
i am searching for a 4 pole/4position rotary switch for a NYDs like summing routing....

Anyone knows a good (because the signal goes through) and cheap one?

Make before break is better, or?

Thanks in advance
Leslie...

 

[mcs]

I don't know where you are, but in Europe switches like that are quite rare. It would be a lot easier to get a 6-pole 4 position switch (two 4*3 decks). You can get switches like that from RS and Farnell.

Best regards,

Mikkel C. Simonsen

 

[gang of elk]

mouser has lorlins. i'm trying out some shorting ones now, they seem just fine. cheap price.

 

[Gus]

not Lorlins!

I don't like them for any thing but a proto build I would never use them in something I wanted to last and rely on.

 

[NewYorkDave]

How about an Alpha rotary? They work well and are inexpensive. Mouser sells them.

Use make-before-break.

 

[daArry]

How many do u need?

I have some of these funky switches that i used in my summing box:

http://www.groupdiy.com/index.php?topic=820&postdays=0&postorder=asc&start=15

They are Alps and are 4 pole 6 posistion - but depending on where u attach the connector to the metal base thingy (where all the switch contacts are) you can make them into other min/max posistions - including 4pos I used em that way for left-center-right-mute...

Just to be clear - that long strip has a metal band in there that contracts/expands on each switch turn which moves the switch mechanism/contacts in that metal box on the pcb - so signal path is also kept very short. The pinout of the contacts is on a standard 2.54mm grid...

Give us a shout if interested :thumb:

 

[Leslie West]

Oh, yes these alps are fine... I need 8 - 16. I don´t know right now....

Are these PCB mounting ones? That would be cool.....

I am in Germany. So Where are you?... :grin:


@NYD I will take a look for these Alphas. Thanks, also for your design...

 

[daArry]

8-16 aint a prob and theyre PCB mounting yes - u can see in the pics pretty clearly no?

I'm in London, England...

ta

 

[Leslie West]

[quote author="daArry"]8-16 aint a prob and theyre PCB mounting yes - u can see in the pics pretty clearly no?

I'm in London, England...

ta[/quote]

Ok, I could take a look in the left side where Londaaaan stands...

Cool, do you want to sell them? Howmany can you sell? Would be very cool....

 

[daArry]

:thumb:

how many do u need? :wink:

 

[NewYorkDave]

Leslie, which schematic are you looking at? The design idea went through a few iterations...

 

[PRR]

> searching for a 4 pole/4position rotary switch.... and cheap

4*4="16"

The biggest common switches today are "12":

CONT ROT 1POL 12POS ______ 1*12=12
ROTARY 1P 2-12 POS ______ 1*12=12
ROTARY 2 POLE 6 POS ______ 2*6=12
ROTARY 3 POLE 4 POS ______ 3*4=12
ROTARY 4 POL, 3 POS ______ 4*3=12
RTRY 1POL 12POS SLDR______ 1*12=12
RTRY 2POL 6POS SLDR ______ 2*6=12
RTRY 3POL 4POS SLDR ______ 3*4=12
RTRY 4POL 3POS SLDR ______ 4*3=12
CONT ROT 1POL 12POS ______ 1*12=12

Therefore this is not going to be an easy find. Either expensive (and special-order) or a lucky surplus buy (and this is a good place to hear about such things).

 

[NewYorkDave]

But a 6-position, 4-pole is not impossible to find, and you can just adjust the stop to make it 4-position.

 

[Leslie West]

[quote author="daArry"]:thumb:

how many do u need? :wink:[/quote]

Give me a prize and I tell you how many.... :grin:

[quote author="NewYorkDave"]Leslie, which schematic are you looking at? The design idea went through a few iterations...[/quote]

Oh, I don´t know. This little "LCRsum.pdf" with the ground routing of the unused resistors.
Sometimes you know, what you need, but the "routimg" makes you crazy, so it was a very good help, having this little pdf....

 

[daArry]

I have enuff !! :twisted: as prr said...

... or a lucky surplus buy (and this is a good place to hear about such things).

 

[Leslie West]

[quote author="daArry"]I have enuff !! :twisted: as prr said...

... or a lucky surplus buy (and this is a good place to hear about such things).

[/quote]

Ok, i will send you a pm for my lucky surplus buy.... :grin:

 

[NewYorkDave]

Try this...

http://electronicdave.myhosting.net/miscimages/16chpassivemxr.gif

http://electronicdave.myhosting.net/miscimages/16chpassivemxrpg2.gif

 

[Leslie West]

[quote author="NewYorkDave"]Try this...

http://electronicdave.myhosting.net/miscimages/16chpassivemxr.gif

http://electronicdave.myhosting.net/miscimages/16chpassivemxrpg2.gif[/quote]

Thanks. I ´ve seen this before, but I am using a Zero Ohm Input Summing Amp, so I only need to put the unused to ground. Thats all.
Thanks anyway....