I have a 80's Christmas incandescent light string without any kind of electronics. They are static until you replace one normal bulb with one marked bulb.
It seems to be that the marked bulb (that actually also works) has some kind of special filament that burns out but still works, with some different resistance. Then the lights begin to blink.
- What is special in that bulb?
- If there is a fixed resistance, why does the time between flashes seem to be random?
- Why do the lights become fixed and with a mini thump start to blink again?
- Is there any way to make them perpetually flash without thumping it?
- Voltage: 220V
- Lights bulbs: 100