How to connect 10 lights or LED's in sequence having all lights on when the switch reaches 10? Answered
I want to construct a panel with a 10-position rotary switch that lights a vertical column of lights or LED's. At position 1 the bottom light is on, at position 2 both lights 1 and 2 are on. At position 8, lights 1 through 8 are all on until at position 10 all 10 light are on. The bottom lights will be green... then middle lights yellow, and finally red lights at the top. I was going to use LED's but for 10 it seems I may need 24v supply? If I use 6-volt lamps, maybe I can get then to stay on with a 6-volt lantern battery or 9v battery ? Can I simply use a rotary switch and blocking diodes to keep the next light from coming on too soon? This is such a simple idea but I have not found a simple solution yet - any help will be very much appreciated.