What is the function of this 6 volt timer and motor control circuit?

[lonely_nucleus]

I have found this circuit and I was wondering what it did. Does it control how long a motor is running?https://www.google.com/search?q=6+volt+timer+55+motor+control+circuit&safe=strict&biw=1607&bih=834&source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAmoVChMI28KE9-KkyAIVkKWICh2bxQ23#imgrc=TVAXCdSBnuQRPM%3A

 

[sophiecentaur]

No attachment?? At least I can't find it.

 

[reddvoid]

No attachment

 

[sophiecentaur]

Which circuit? I can't see one.

 

[Jony130]

I have found this circuit and I was wondering what it did. Does it control how long a motor is running?https://www.google.com/search?q=6+volt+timer+55+motor+control+circuit&safe=strict&biw=1607&bih=834&source=lnms&tbm=isch&sa=X&ved=0CAcQ_AUoAmoVChMI28KE9-KkyAIVkKWICh2bxQ23#imgrc=TVAXCdSBnuQRPM%3A

This circuit allowed you to change the speed of a motor by using 555 as a PWM generator. The speed is changing from almost 0 RPM up to the maximum RPM the motor can run.

 

[phinds]

This circuit allowed you to change the speed of a motor by using 555 as a PWM generator. The speed is changing from almost 0 RPM up to the maximum RPM the motor can run.

What browser are you using that you are able to see the attachment that the rest of us can't see ?

 

[Jony130]

What browser are you using that you are able to see the attachment that the rest of us can't see ?

The Firefox, but in realty I switch to BB code. And now I can see this link

https://www.google.pl/search?q=6+vo...=HPoPVoT7CcfhywP1w77gDg#imgrc=TVAXCdSBnuQRPM:

And this circuit
http://www.next.gr/circuits/DC-motor-control-using-555-timer-circuit-l41280.html

 

[phinds]

The Firefox, but in realty I switch to BB code.

Thanks. What is "BB code" ?

 

[Hesch]

I have had this problem too, inserting some image:

Just this
https://www.physicsforums.com/attachments/proxy-png.89725/?temp_hash=8db6cd77134e9c196af8ceda17abd892
will be inserted. But if I edit my post, I can see the full image.