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Simple Electronic Circuit

J

Jon

Jan 1, 1970
0
Hey

I was wondering how I would go about making this circuit:

A Switch and 9V battery powering an LED. When the switch is on, the
LED is on, but blinking. My goal is to do this with simple components
like capacitors and resistors. Because of the restriction of 9V power
supply, I can't use OP amps or other 5V ICs..

Any help would be appreciated!
 
B

Bill Vajk

Jan 1, 1970
0
Jon said:
Hey

I was wondering how I would go about making this circuit:

A Switch and 9V battery powering an LED. When the switch is on, the
LED is on, but blinking. My goal is to do this with simple components
like capacitors and resistors. Because of the restriction of 9V power
supply, I can't use OP amps or other 5V ICs..

Any help would be appreciated!

Radio Shack 276-036 or 276-305 or 276-308. Be sure to add circuitry
to drop the voltage, but the blinking is all done for you out of the
blister-pack.
 
F

Fred Stevens

Jan 1, 1970
0
Hey

I was wondering how I would go about making this circuit:

A Switch and 9V battery powering an LED. When the switch is on, the
LED is on, but blinking. My goal is to do this with simple components
like capacitors and resistors. Because of the restriction of 9V power
supply, I can't use OP amps or other 5V ICs..

Any help would be appreciated!

I can't count how many times I've heard this myth that op-amps can't
be run from a single 9V supply!

Fred
 
Q

Quark Ng

Jan 1, 1970
0
Not only is the myth that op-amps can't be ran from a 9V supply is
false. It is also false to think that you can't run logic (5V) IC's
if your only power is a 9V battery.

Check out LDO regulators. (do a search on "LDO" at www.digikey.com).
They can provide you with a nice clean 5V if you give it 9V.

Now, you don't even need 5V anyways. Check out a "555" timer chip.
With that, you can even control the frequency and duty cycle of your
blinking!!!!

Enjoy!!!

-Quark
 
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