Spring Return to Center Rotary Switch

Carl_Huff · 17th May 2008, 07:44 PM

Hello,

I am looking for a source of a rotary spring loaded 'return to center' switch. I want to replace the traditonal volume potentiometer in a preamp that I am building with a digital switch. The appearance will remain the same as if I had used a traditonal pot.

It works this way ...
The user rotates the 'spring return to center' knob left a few degrees to close a switch. The switch closure is monitored by a PIC that steps down the gain. Similarly rotating the knob to the right closes another switch and the PIC increases the gain. I've got the PIC code worked out. What I am looking for is a source of switches. The switches needs to have a shaft that accepts standard knobs. Anybody know of a source??

Steve Eddy · 17th May 2008, 09:52 PM

Mouser part number 690-E3G0603N-2.

It has more poles than you'll need and it costs $42.30, but it will do what you're looking for.

This has come up a couple times before and that's the only readily available switch of that type that anyone's so far been able to find.

se

Carl_Huff · 18th May 2008, 03:47 AM

Boy that seems like a lot of money for what it is.

But thanks for the quick reply!

Chartal · 18th May 2008, 05:15 AM

Hi

I don't think the Electroswitch is good for low voltage and current of is application, because of its open design (not seal). But I can be wrong.

Here is 2 threads about rotary switch for volume control.

Rotary encoder instead of buttons
Two position rotatory switch with spring return wanted

Carl_Huff · 18th May 2008, 04:21 PM

Thanks for the pointers!

I saw these threads when I searched the forums. I don't like the Rockwell industrial switches because, well ... they feel and look industrial! They are more appropriate to a fork truck than a preamp. I am looking for a switch with a quarter inch shaft that I can put a traditional aluminum knob on.

Surely there is something out there that we've all missed.

Foehn · 27th June 2008, 11:42 AM

Can anyone enlighten me on how dual deck rotary switches work? Might seem a daft question, but then I'm not very familiar with them. This one is made by Elcon and appears to be a dual deck. It has 30 pins on each deck.

Foehn · 4th July 2008, 09:05 AM

I take it that is also a no! Gee! You Audio people are sure helpful!

17th May 2008, 07:44 PM	#1
Carl_Huff diyAudio Member Join Date: Dec 2004 Location: Bakersfield, CA	Spring Return to Center Rotary Switch Hello, I am looking for a source of a rotary spring loaded 'return to center' switch. I want to replace the traditonal volume potentiometer in a preamp that I am building with a digital switch. The appearance will remain the same as if I had used a traditonal pot. It works this way ... The user rotates the 'spring return to center' knob left a few degrees to close a switch. The switch closure is monitored by a PIC that steps down the gain. Similarly rotating the knob to the right closes another switch and the PIC increases the gain. I've got the PIC code worked out. What I am looking for is a source of switches. The switches needs to have a shaft that accepts standard knobs. Anybody know of a source?? __________________ Best Regards, Carl Huff

18th May 2008, 03:47 AM	#3
Carl_Huff diyAudio Member Join Date: Dec 2004 Location: Bakersfield, CA	Boy that seems like a lot of money for what it is. But thanks for the quick reply! __________________ Best Regards, Carl Huff

18th May 2008, 04:21 PM	#5
Carl_Huff diyAudio Member Join Date: Dec 2004 Location: Bakersfield, CA	Thanks for the pointers! I saw these threads when I searched the forums. I don't like the Rockwell industrial switches because, well ... they feel and look industrial! They are more appropriate to a fork truck than a preamp. I am looking for a switch with a quarter inch shaft that I can put a traditional aluminum knob on. Surely there is something out there that we've all missed. __________________ Best Regards, Carl Huff

27th June 2008, 11:42 AM	#6
Foehn diyAudio Member Join Date: Mar 2008	Rotary Switches Can anyone enlighten me on how dual deck rotary switches work? Might seem a daft question, but then I'm not very familiar with them. This one is made by Elcon and appears to be a dual deck. It has 30 pins on each deck.

4th July 2008, 09:05 AM	#7
Foehn diyAudio Member Join Date: Mar 2008	Silence is deafening I take it that is also a no! Gee! You Audio people are sure helpful!


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

17th May 2008, 09:52 PM	#2
Steve Eddy diyAudio Member Join Date: Sep 2002 Location: Sacramento, CA	Mouser part number 690-E3G0603N-2. It has more poles than you'll need and it costs $42.30, but it will do what you're looking for. This has come up a couple times before and that's the only readily available switch of that type that anyone's so far been able to find. se

18th May 2008, 05:15 AM	#4
Chartal diyAudio Member Join Date: Nov 2004 Location: Montreal	Hi I don't think the Electroswitch is good for low voltage and current of is application, because of its open design (not seal). But I can be wrong. Here is 2 threads about rotary switch for volume control. Rotary encoder instead of buttons Two position rotatory switch with spring return wanted

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Two position rotatory switch with spring return wanted	DocLorren	Parts	11	7th April 2008 07:31 PM
Rotary Switch Redux ...	udtman	Parts	3	25th March 2008 12:15 AM
rotary switch	woodturner-fran	Parts	5	9th February 2008 09:04 AM
Rotary on/off switch	kestrel200	Parts	2	23rd April 2006 09:23 PM
Rotary switch	Freddie	Solid State	1	30th August 2001 07:55 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read