News & Products for the week of July 21st 2025 Model railroad operators and builders can get the latest information about ...

Such dual time-scale P&O improves the speed and accuracy of complex impedance determination. Besides, a fully self-powered milliwatts impedance control scheme with an inductor-less H-bridge ac–dc ...

Note: This article originally appeared in the September 2000 issue of Classic Toy Trains. In celebration of Lionel’s 125th ...