What is cheapest place to buy diode??

I was just wondering what the cheapest place to buy a diode from was. Im new to building lasers so i dont know anthing.

Depends on the type of diode. What are you trying to build?

^Yeah, what he said. If you just want any old diode, you can pick up a 1N4001 form Radio Shack or lots of other places for a few cents.

If you want a laser diode, and any diode will do, then anybody call sell you a 5mW or so red for a buck or two, I'm sure there are several here who will give you all you want of those for just the price of shipping.

So I assume you want a high powered laser diode, then what color? What power do you want? What do you want to do with it?

I recommend a lot of reading to help you decide.

I need an 803T blu-ray diode.

Check the Sales and Group Buy sections of the forum. you'll find lot's of stuff including PHR diodes.