LOTTO NUMBER SELECTOR

  
This project is a real winner in more ways than one. When you understand how the circuit works, it is really 4 projects in one. And it has two modes of operation: MANUAL and AUTOMATIC. Everyone likes a little flutter. The introduction of so many outlets in competition for the gambling dollar is positive proof of this. Every week the total prize pool for these games rises and this alone must draw in many new customers.
LOTTO NUMBER SELECTOR - schematic

Our circuit is a real gem. It looks simple but lurking within the 5 chips are a number of interesting building blocks. The most significant feature of the circuit is the absence of 14 display resistors. Both the 4511`s are display drivers and under



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