Item 690 & 990, wall plug in power transformer, is suitable for powering many items. It can be used for powering the Yard Master (item 354), LocoMatic™ systems operating in command mode (mode 3). For newer motors, this has enough power to operate a complete train with our LocoMatic™ sound & control system. Or use it to power several: 12VPS (item 369), RL-ADJ (item 379), VRS (item 378). Use a bridge rectifier (item 371) to make a DC supply capable of powering several polarity reverse switch machines, like the Lemaco shown above. Many applications.