Note: This article originally appeared in the September 2000 issue of Classic Toy Trains. In celebration of Lionel’s 125th anniversary this year, we’re sharing it online. The Lion has just entered the ...

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 ...

Ever since the reliability issues caused by I/O (input/output) compatibility among chips fabricated using different processes were raised during mid-2000, on-silicon mixed-voltage I/O buffer with wide ...