Price: Direct-current model with factory-installed speaker, $134.95; with ESU sound decoder, $249.95 Manufacturer: Atlas Model Railroad Co., 378 Florence Ave., Hillside, NJ 07205; 908-687-0880; ...

Price: Direct-current model with 21-pin connector, $199.99; with ESU LokSound V5 sound decoder, two cube-type speakers, and an ESU-designed "PowerPack" with two super capacitors, $324.99. Manufacturer ...