My newly-repaired Radio Shack 0-15 counter, made of 4 flip flops. All but one grain-of-wheat bulb was gone, and the glass-encased photoresistor broke in transit, but Radio Shack had more! Not glass, but plastic coated, and the bulbs were colored. I got tired of stripping the leads on them though and put in LEDs after a while. It works great! I built it when I was about 10...it had a couple of lifted foils but worked once I replaced the components. I remember replacing the photoresistor with a switch and learning what debouncing was...
- posted by Leigh @ 06:51 z