In the model train world, we use car brake light bulbs as current limiters for a reason similar to why they used one in this monitor. http://cs.trains.com/mrr/f

In the model train world, we use car brake light bulbs as current limiters for a reason similar to why they used one in this monitor. http://cs.trains.com/mrr/f/744/t/215408.aspx http://cs.trains.com/mrr/f/744/t/215408.aspx