So I got some NPN and PNP transistors.

[epicelite]

Any things you suggest I experiment with? I got a solderless breadboard too!

 

[eurddrue]

Any things you suggest I experiment with? I got a solderless breadboard too!

*sniffle* first project I ever completed.

 

[epicelite]

I need some battery connectors.

Also whats it do? I can't read the small text.

 

[grossaffe]

you could make logic gates out of them.

 

[XCVG]

Blow some up. It's pretty cool. Wear eye protection, though.

I forget exactly how to do it, but I think I put positive across the emitter and base and negative on the collector- I believe this was a PNP. 9V will do just fine.

Seriously, though? I think grossaffe's suggestion is pretty good. Stuff that blinks is cool, too. This oscillator is fun, though:

There's another version with a 555, but this one uses just two transistors. Make some sort of crude instrument with it.

 

[eurddrue]

I need some battery connectors.

Also whats it do? I can't read the small text.

It flashes the two LEDs back and forth. The values on the capacitors determines how long before they blink. thus a 10 mfd makes it blink a lot faster than a 1000 mfd. you don't need to have a battery connector. just use some alligator clips or something

 

[epicelite]

I don't have any 9V batteries either.

 

[NDCaesar]

Do you have six 1.5-volt batteries (AA, AAA, C, D, etc.) that you could rig up in series? Because that would work, too.

 

[epicelite]

Still need some way to hold the batteries.

 

[βeta]

Tape.

 

[epicelite]

Then my batteries will be all sticky. D:

 

[eurddrue]

use any voltage between 5 and 12 volts >.> this isn't rocket science. Just go do it kthx.

 

[brunoip]

3v audio amplifier

 

[Basement_Modder]

Any way to make that adjustable, Bruno?

 

[brunoip]

Any way to make that adjustable, Bruno?

What is what you want to adjust?
The volume?

 

[Basement_Modder]

Any way to make that adjustable, Bruno?

What is what you want to adjust?
The volume?

Yes.

 

[brunoip]

Any way to make that adjustable, Bruno?

What is what you want to adjust?
The volume?

Yes.

with one of these (5k)

 

[eurddrue]

Any way to make that adjustable, Bruno?

What is what you want to adjust?
The volume?

Yes.

with one of these (5k)

well I put a potentiometer on one of my little amps (it was awful) and it only made the volume go from normal to off. I don't think the amp from his schematic is very powerful :/

 

[XCVG]

Ideally you need an audio potentiometer, and it usually goes on the input side. For stereo you need a dual-gang one. I stole YAP64's off some speakers.

 

[brunoip]

it is as powerfull as a standard cell phone.
a video working on 2,4 v (3v should be louder)