Hey I'm new to the forums, thought maybe you people could help me:
Here's my circuit, produced by a program I downloaded:
**broken link removed**
resistor A is 5.6kohm and resistor B is 15kohm. the electrolytic capacitor is 100uF.
I'm driving it with a 5V 600mah power adapter. I've connected pin 3 to the + of an LED, then the - of the LED to grnd
now the 0.01uF capacitor I'm using is a 200V mica capacitor (103k). is this the wrong capacitor to use for the 0.01uF capacitor in that diagram? should I be using an electrolytic?
Also, the 555 timer doesn't have a notch to show which way is up. There is a printed IC number on the board though, do I orient it according to that?
what happens is my LED turns on, and stays on. indefinately. anyone able to help?
Here's my circuit, produced by a program I downloaded:
**broken link removed**
resistor A is 5.6kohm and resistor B is 15kohm. the electrolytic capacitor is 100uF.
I'm driving it with a 5V 600mah power adapter. I've connected pin 3 to the + of an LED, then the - of the LED to grnd
now the 0.01uF capacitor I'm using is a 200V mica capacitor (103k). is this the wrong capacitor to use for the 0.01uF capacitor in that diagram? should I be using an electrolytic?
Also, the 555 timer doesn't have a notch to show which way is up. There is a printed IC number on the board though, do I orient it according to that?
what happens is my LED turns on, and stays on. indefinately. anyone able to help?