Small solenoid

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hi,
i'm thinking on using small solenoid control box opening.
i've seen example in this video.

the soloneid of video pull-push one:


i guess 1 end pull actuator , other end push actuator.

i've found on ebay few cheap 5v solenoids,  think great because wont need relay, transistor control i'm not sure on get. think need pull solenoid (like this one, imagine) same price there this pull-push one use other experiments.



from photo don't how pull-push seems have 1 end?
does know how works?

thanks!

if @ ebay page , scroll down little, see solenoid other end, , there core sticking out.

all solenoids same. spring keeps core 1 side, , when powered cores moves in other direction compressing spring.


Arduino Forum > Using Arduino > Motors, Mechanics, and Power (Moderator: fabioc84) > Small solenoid


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