transistorized code lock project
friends....i am in vacation now ..i felt to do some thing ...i searched in net and found transistorized code lock interesting and decided to do...i require two ic s for that ..and i went to nearly some five to six electronic shops but could not get that..i felt bad and asked them why? they simply said they are special ics which people do not use them frequently...i need some practical knowledge but what to do..???as i am just entered into the core dept..i felt to do like interesting things like assembling the parts and making a small thing atleast..but what to do guys???😔