Electronics

[Steezie]

Im looking for a place I can buy a few things for an electronics experiment.

Are there any good wholesale or cheap stores online that sell electronics parts?

Specifically Im looking for a dynamo and a small (And I do mean small) air compressor.

For the dynamo I was considering getting a flashlight like THIS and just cannibalizing the dynamo out of it.

 

[BrainHertz]

Not sure what your location is, but if you're in the US and looking for stuff to hack/cannibalize for parts, it's pretty hard to beat American Science & Surplus: http://www.sciplus.com/

HTH

 

[MorkandMindy]

And for an air compressor there are electric ones for filling car tyres, or do you need a higher flow rate?


Would a sudden large flow do, such as filling a car tyre then letting air out?



(I'd be interested to hear more if you want to say what the experiment is)

 

[Steezie]

And for an air compressor there are electric ones for filling car tyres, or do you need a higher flow rate?


Would a sudden large flow do, such as filling a car tyre then letting air out?



(I'd be interested to hear more if you want to say what the experiment is)

Im trying to make a dynamo powered blower. I turn a crank attached to the dynamo and it powers the air compressor. I'd like the air to come out as fast as possible and still be able to be reasonably powered by the dynamo

 

[Sophrosyne]

Im trying to make a dynamo powered blower. I turn a crank attached to the dynamo and it powers the air compressor. I'd like the air to come out as fast as possible and still be able to be reasonably powered by the dynamo

For the most efficient design you probably be better off using a mechanical compressor and skip the mechanical->electrical->compressor flowchart.

 

[MorkandMindy]

A little model makers electric motor (dc) is cheap and fun. Solder a red LED across the terminals one way and a green one the other way, spin the motor one way and the green one comes on and the other way the red one.

That is a simpler and more transparent version of the wind up flashlight without the built in battery.

As Soph... said, use of a dynamo to power a compressor is going to be a big challenge.

This is an interesting thread, I want to hear about more experiments