DIY Multifunction Led Name For Store, Wall, Open/Close Door, etc

On this Project , we will discuss about Led Name , for 8 Alphabet or more. Using IC 74LS164 TTL , 8 bit parallel out serial shift register. And Using IC 555 timer. Also transistor 9013 or BC 107.
The circuit as below :

Led Configuration using Transistor BC 107 / 9013 :

Guidance for make one alphabet .

For making 1 alphabet , we using several LED parallel / Series with one transistor . We using power supply 15 Vdc , so maximum LED series is Six, in one line. For example for 18 LED for 1 alphabet, we use this configuration :

Power Supply 5 V using IC 7805.