circuit board 1

i built a circuit board with diferent components the circuit I had to build was a circuit containing four resistors 2 leds and two npn transistors the circuit has a 12V supply and two 5V supplys and a ground.I had to work out the resistors the first resitors i worked out was R14 and R15 they were in paralel series with a led each and they used the 12V supply and a transistor I measured the led it is 1.7V and the transistor is 0.5V and the led has amprege of 20ma so it is:
12-1.7-0.5=9.8
=9.8/0.02
=490
therefor R14 and R15=490ohm
next i worked out R13 and R16 both has a transistor wich is also same transistor as for the other two.
I looked at the datasheet and found beta=100
Ib=Ic/B=0.02/100=.0002
Ib=.0002=.2ma
I checked the datasheet and found .2mA is not enough i have to use 5mA
5-.6=4.4
4.4/.005=880
R13 and R16=880ohm
I had to design the circuit first using lochmaster

The picture above here shows my design of the first circuit.the circuit i built is made fore injection because it gets earth trigerd.I had some problems with my circuit,when i tested it i found only one of my lights was working after diagnosing it by first visual inspection i saw my soldering was touching after i cleared it i tested my circuit again and found it was stil not working so i checked the voltage drop at the working led and found it had a voltage of 11.4 volts wich is realy high.Then after loocking at my diagram i found my resistors was on the rong side of my leds and it was cuting out the resitors after puting two new resistors in front of the leds my circuit was workin perfectly.

The photo above is showing the circuit works as it should (showing the red light).The way to test this circuit is to have the 12v positve wire in the 12v supply aswel as the negative then have a bridge wire going from the negative of the 12v supply to the negative of the 5vsupply then the 12v and 5v has to be turned on then take the one 5v wire and put it in the 5v positive and the one light has to cme on do the sam with the other 5v wire and other light should come on.

photo above shows the green light working.