Selecting a 16 channel switch..plz help......

[ku637]

Hi,

I've about 16 lines (24V rated) i want them to one resistor say 2k2 at one time and other time i need to connect them to another resistor say 4k7.The current flowing will be very less say <10mA.
Better it should be a single control manual or logic is ok.

i was thinking of SPDT switches but all are independent control that means i ve to put 16 knobs in positions to achieve my objective.
Any better suggestions.?

Thanks

 

[kam1787]

first off, why not use SPST switches?

You could put the resistors in series, one resistor [2k5] is in parallel with the switch. When the switch is off, the resistors are in series for a total of 4k7. With the switch on, that resistor is shorted, and the resistance is 2k2.

You might be able to find multi-pole switches......16 pole or 12 or 8pole which would be a big help

https://www.electronicsurplus.com/I...witch_ rotary_ 18PDT Non-shorting_ - PA-2041/

https://hackaday.com/2012/08/20/making-a-gigantic-18-pole-16-throw-switch/

https://dir.indiamart.com/impcat/rotary-switch.html