Lots of stuff is unconnected.

a-e are connected and f-j are connected but only for each group of 5 pads.

The original breadboards were designed to have a DIP with 0.1 lead spacing span the cutout and you would have access to all the pins,

Some breadboards break the red blue power buses into 4. Yours does not appear to do this.

 

so wha

Lots of stuff is unconnected.

a-e are connected and f-j are connected but only for each group of 5 pads.

The original breadboards were designed to have a DIP with 0.1 lead spacing span the cutout and you would have access to all the pins,

Some breadboards break the red blue power buses into 4. Yours does not appear to do this.

so what sh0ld i do?

 

I tried to simulate this oscillator (file attached) in LTspice but it crashes the program

 

Take a look at this page: http://www.proto-advantage.com/store/product_info.php?products_id=200043 Look at the images. That's how your breadboard is interconnected.

You have wires in holes that don't connect to anything.

 

yea i now how the connections in the bread board work i have a circuit the led is on and the pot is controling it but no sound comes out ... i so wont this to work

 

Try disconnecting the cap from the top of LED. Connect bottom lead of cap to ground.

 

Do you understand what you're trying to do here?

Here is a link....from your link.

http://www.kerrywong.com/2014/03/19/bjt-in-reverse-avalanche-mode/

The cap charges up thru R1 and the pot. When the voltage on the cap, reaches the avalanche voltage for that transistor.......the transistor will avalanche......discharging cap thru LED and lighting it.

Come to think of it....you might need a resistor for that LED.

Does any of this make any sense to you? We don't know your level of understanding.

 

Try to simplify. Just get the oscillator working before trying to make sounds. From the pictures, you are making this way more complex than necessary. Try using a small, 8 ohm speaker (like the kind used in old computer cases). And, note the reverse polarity of the transistor (2N3904 pin 1 is emitter). You will be running the Led off the collector to ground. This orientation allows for a lower avalanche voltage (~12v). You will need a larger value capacitor to get a visible blink rate. Have fun!

 

The oscillator schematic has only 5 components, but there are at least 14 jumper wires running around your proto-board. I suggest you disconnect everything and start over, placing the components on the board so they connect directly to each other through the board. With nothing but two power wires to the board, and no connection to the speaker, you should see the LED flash, and be able to vary its flash rate. If that doesn't work, nothing else will.

ak

 

From the source website, with those values it oscillates at low audio frequencies so you won't see the LED flash.
"But in the video above i wanted it to be low and angry so i put a 10uf on it."

 

Do you understand what you're trying to do here?

Here is a link....from your link.

http://www.kerrywong.com/2014/03/19/bjt-in-reverse-avalanche-mode/

The cap charges up thru R1 and the pot. When the voltage on the cap, reaches the avalanche voltage for that transistor.......the transistor will avalanche......discharging cap thru LED and lighting it.

Come to think of it....you might need a resistor for that LED.

Does any of this make any sense to you? We don't know your level of understanding.

i think i understand so what are sugesting ? puting another 1 k resistor before the led?
sory about the deley been without internet