Electronics > Beginners

spdt switch

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Gyro:
One solution is to mount your breadboard on a base board and fit a vertical panel for mounting switches, terminals etc.

DIP switches have the same footprint as DIP ICs and have gold plated contacts, two (possible) problems though...

1. The pins might be a bit too thin to make a reliable connection with the breadboard contacts and
2. Because they are so small, you need a pointer to switch them.

Fitting a base and front panel is the better longer term solution.

MarkF:

--- Quote from: fixit7 on May 22, 2019, 11:32:36 am ---I should have shown this earlier.

https://www.dropbox.com/s/0dyg6wogy341lhd/KEEP_circuit.jpg?dl=0

I have a 3rd wire going from switch to the negative of the buzzer.

--- End quote ---

I don't see how your 555 timer ever works.
It should be something like:

   


--- Quote from: fixit7 on May 22, 2019, 04:29:24 pm ---
--- Quote from: Richard Crowley on May 22, 2019, 04:13:12 pm ---
--- Quote from: fixit7 on May 22, 2019, 03:57:30 pm ---Richard said he saw a dpdt switch ?

--- End quote ---
I was referring to the photo cited in #5, but I confused the shadows of the terminals for the other set of terminals if it were a DPDT switch.  How sloppy of me.   :palm:
In any case, the circuit cited in #13 clearly shows only a SPDT switch.

--- End quote ---

Ok. I would like to get a switch that I can use on my breadboard.

I was told to find one with gold contacts, but could not find any.

Only larger switches with gold contacts.

--- End quote ---

The one I posted earlier for soldering
   https://www.digikey.com/products/en?keywords=EG2459-ND
Or this one for a solderless breadboard
   https://www.digikey.com/product-detail/en/e-switch/100SP1T1B1M51REH/EG2354-ND/378823

MarkF:

--- Quote from: Richard Crowley on May 22, 2019, 04:13:12 pm ---
--- Quote from: fixit7 on May 22, 2019, 03:57:30 pm ---Richard said he saw a dpdt switch ?

--- End quote ---
I was referring to the photo cited in #5, but I confused the shadows of the terminals for the other set of terminals if it were a DPDT switch.  How sloppy of me.   :palm:
In any case, the circuit cited in #13 clearly shows only a SPDT switch.

--- End quote ---

The circuit in post #13 is invalid.

Please post your pictures into the forum as an attachment.  Do not use DropBox.
I have seen many pictures go away because they were linked to other services.

fixit7:
I fixed the picture in post #13.

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