WebDec 21, 2024 · louis niederlander. 12/21/19 #150966. The K-line whistle circuit was designed by the late Al Ruocchio, past TCA president, EE for RCA, and an opera expert (had his own radio program). Many years ago he gave me a copy of his circuit and basically the DC offset is almost 10 Vdc, much more than any Lionel or MTH transformer. WebJul 12, 2024 · Lionel usually uses a nichrome resistance wire in this application. The resistance wire is usually attached to a copper wire at both ends with a crimp butt splice. The resistance of this connection can go up with age, reducing the amount of AC power that can bypass the rectifier.
Lionel whistle tender...more noise than whistle! - Trains
WebMar 18, 2024 · Options Steve Curtis, Sounds like the whistle relay is sticking, you may be able to remove the body and access the relay, take it apart carefully and clean/light lube to get it working. Find below a couple good links. Good luck. I hope this helped you out, if so let me know by pressing the helpful button. http://pictures.olsenstoy.com/cd/whi-ten... WebDec 15, 2009 · When using a meter it wil Detect AC over DC since the current is mostly AC. The wide chip at the bottom of the relay is selenium a rectifier. If you remove the transformer cover you will find more of the round chips or diodes. The theory is the pulse activates the … phillip cpac
Tips on fixing a Tender Whistle - O Gauge Railroading On Line Forum
WebSep 27, 2016 · How it works? There is a constant voltage applied to the anode of the opto from the simple DC supply comprised of D1 and C2. As long as there is pure AC on the track, C1 does not charge sufficiently to allow the transistor … WebMar 30 #165283. Lionel whistle controls are a 2 step system.For a ZW as you advance the whistle control the ZW adds a 5.5 VDC pick-up surge voltage to the AC output to trigger the whistle relay. As you push farther to the stop the DC drops down to the holding voltage of .85 VDC to hold the whistle relay closed. WebJan 9, 2015 · Lionel has a modern version that has a DC motor and controlling board. If you care to research it. The relay will need to be isolate too. Only the coil connections will have track power. Then you ground back to your bridge. I guess. Dave Sams Registered Joined Nov 24, 2010 1,155 Posts #3 · Jan 6, 2015 My solution was a Whistling Freight Shed. try not to get scared challenge 2