Hi guys
I have an Atlas turntable that’s been in storage for a while once cleaned up I want to use it for a small loco depot.
I have a small problem I have lost the wiring diagram for it and the exit tracks.
Are the exit tracks still available I only need three and does any one have a wiring diagram they can scan and email to me.
the turntable is moulded in black with a motor shed on the side, but I don’t know if that will give an indication of age
regards John
I’ve got two of these, one new and one old. The major difference is that the old ones indexed every 30 degrees, and the new ones index every 15 degrees. The motor units on the new ones are a bit different, too. The old one dates from the early 1960’s, and the only reason I replaced it was to get the 15-degree indexing. The motor drive was shot, but other than that the turntable still worked flawlessly.
There are two wires attached to the turntable itself, connected to screw lugs. They go to the track, and should be wired to the two sides of your track wiring bus. The two lugs on the motor drive are to turn the turntable. These should go to a double-pole, double-throw switch wired with a crossover, the same kind of switch wiring used to run your track. You want a DPDT switch with a center off position. Whether it’s a momentary-contact or not is up to you. The motor drive wants something like 10-14 volts DC. I run mine off an old power pack so I can adjust the speed. You can also drive one of these with DCC.
If you look at the slots around the turntable you will see some are marked “A” and the rest are marked “B”. All the A slots should be wired the same, and all the B slots should be wired the other way. Other than that, I think the best way to figure out which is which is trial-and-error.
You don’t need a reversing unit with an Atlas. The turntable itself handles all the polarity-flipping, assuming that you follow the A-B convention on wiring the tracks.
I’m not sure what you mean by “exit tracks.” There’s nothing special about these. The turntable is designed to sit flat on your layout, and the bottom of the track slots will pretty much line up with a piece of cork roadbed. I use WS foam roadbed, and I had to shim it a bit to get to the same level. The turntable also lines up with the Atlas roundhouse, which has an "
Hi Mister Beasley
Thanks most helpful
By exit tracks I have recollections which may or may not be correct??, of Atlas doing insets for the exits that had a bit of track with wheel chocks moulded on them to fill the unused exit on the TT edge, and a little piece to go in for the track that where being used.
Will have to look at the Atlas Loco shed I was thinking of using two old Hornby saw tooth roof ones I have one behind the other for four loco storage its only going to be a small depot
regards John