Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10 5/3/83 based; site homxb.UUCP Path: utzoo!linus!decvax!bellcore!petrus!sabre!zeta!epsilon!gamma!ulysses!mhuxr!mhuxt!houxm!homxb!4373jml From: 4373jml@homxb.UUCP (J.LISS) Newsgroups: net.railroad Subject: MORE LIONEL QUESTIONS Message-ID: <1106@homxb.UUCP> Date: Tue, 7-Jan-86 12:53:23 EST Article-I.D.: homxb.1106 Posted: Tue Jan 7 12:53:23 1986 Date-Received: Wed, 8-Jan-86 08:03:17 EST Organization: AT&T Bell Labs, Holmdel NJ Lines: 14 Another question on Lionel trains. Recently I have made inquiries into old vs new Lionel equipment. The general concensus suggests that the "old" transformers are compatible with the new ac engines. My research suggest that "some" if not all new ac engines are really dc engines with a full wave bridge rectifier. If the old style transformers are used that would put out a dc signal to raise the relay on the old whistles, will this dc signal make its way through the rectifier thus causing the engine to speed up? Is there a capacitor in front of the rectifier ? (probably not since the engine can be operated on dc ?!?). Another question, why did the old engines with the diesal sounding horn get energized from a battery ? Why couldn't it use the dc that powered the relay ? jonathan m. liss 201-949-5632 homxb!4373jml