LED chaser/flasher/I dunno. Want to make one

[Accu157]

OK I still don't know enough about electronics to figure this out for myself. I have an old cybercrafts digital lab electronics kit. I don't know how the stuff works, usually I just connect the wires from here to there, finish, and plug it in. I have 9 LED's, a 4028 Binary-to-Decimal Decoder, a 4011 NAND Gates, a 4029 Binary Counter, 2 10k Ohm resistors, 100K Ohm resistor, 1MEG Ohm resistor, 1.0 mu farad electrolytic, 10 mu farad electrolytic, a push button, and a 9v power source.

Anything just... pop into your head by chance that screams a blinking LED thing? :confused:

[Malc C]

I'm sure you could probably make a flip flop from the 4011 to give you a time frame (square wave) and use that to drive a couple of LEDs if you had the right serial resistors (100 ohm - 300 ohm - not the 10K as its too much.

Something like
http://sub.allaboutcircuits.com/images/05303.png

http://www.allaboutcircuits.com/vol_6/chpt_7/5.html for more details

[Twin-Jet-Crash]

If you had a 4017 decade counter, you could build a circuit with leds flashing after each other.

The 4017 IC is a 16-pin CMOS decade counter from the 4000 series. It takes clock pulses from the clock input, and makes the ten outputs come on in sequence every time a clock pulse arrives.

Link (http://en.wikipedia.org/wiki/4000_series#4017_decade_counter)

[MatC]

Careful of static as those look like the old CMOS chips to me.
You want a shift register if you can find one... (74HC164 or equivalent). Then you just clock the thing along, LEDS on the outputs, and a simple feedack circuit to keep the lights changing (inverter off the last output is simplest, plenty of other options). Check the voltage of the '164, it's probs different to the 4000 series.

[Smash McCrash]

I had a circuit many years ago that only had resistors, capacitors, and LED's in it. It controlled 3 strings to turn them on and off in sequence. You could choose to have 1 string on and 2 off or 2 on and 1 off depending on which way you soldered the LED's in. I wish I could find the circuit again. I remember that it was in a very old electronics hobby magazine as a marquee picture frame. Maybe one of you'se guys can figure out how it worked or maybe someone out there has some old mags. Hopefully someone can find it again and post it here.

Mike