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Would this work?

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ormo

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Hi,

The circuit I've attached will create a single digit in a display. The circuit is a seven segment display with 2 LEDs making up each segment. The LEDs and resistors finally arrived and I want to make sure that my circuit it correct before I go and solder it all together. Does it look like it would work?

In case the writing hasn't scanned properly the chip is a CMOS 4511 which is a 7-segment common cathode display driver.
 

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Can anyone tell me if the above would work... I'm itching to get going but I don't want to waste my LEDs and resistors..
 
Your CD4511 does not have a power supply so it will not work.
If the power supply voltage is only 5V then the minimum output voltage of the CD4511 is only 3.4V and it will not be able to drive two LEDs in series.
 
Should have mentioned... the 2 wires that lead off in the top right are the power supply wires
 
What will its output voltage be with a 9v supply?
 
What will its output voltage be with a 9v supply?
Don't you have the datasheet for the CD4511?
It shows a max output voltage drop of 1.4V when its supply is 10V and its output current is 20mA. Then its minimum loaded output voltage is about 7.5V with a 9V supply and an output current of 20mA. Its typical loaded output voltage will be about 7.8V with a 9V supply and an output current of 20mA.
 
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