Never connect anything other than your tracks to the DCC system.
Buy a wall wart of the size you need, keeping in mind that not all wall warts are transformers, some are switching popwer supplies, and if you get one of these the thing that you ant to attach to it may not draw enought current to stableize the circuit. You man need to put a dummy load (a lamp for example) on the circuit.
+1. You Could hook up a couple of cheap diodes (about 10 cents each) in series. Each one creates a .7V drop. To if you hook 3 in a line together you would get a 2.1V drop. But if your power supply is AC you’ll need 3 pointed in each direction wired in parallel on 1 leg (wire from the power supply)
I have seen in MR alot of times when something is hooked to the bus as long as you do not drop the voltage to much. Why are you saying not you use the Bus?
There are several reasons not to use your bus for accessories. If you’re running DCC it robs current from your locomotives. If your accessory is designed for DC operation the DCC output is not DC. If you’re using a DC power pack the voltage depends on the throttle position.
If your accessory has a micro chip and it’s circuitry is not well filtered the DCC power can confuse the chip.
As stated above it’s not advisable to run accessories from track power.
Good explaination. I still am questioning if 17.3 v would really cause a problem. Some experiance I have had with Warts is the voltage varies from wart to wart unles you go to the expense of the controled voltage.
I wouldn’t use any voltage higher than what the manufacturer specs say, before I retired we called that type of experimenting “tune for maximum smoke”. Once the smoke escapes it’s useless.
You can’t put the smoke back in and expect it to work!
Check the back (plug side) of the wall wart for the voltage and current rating, most are between .3 to 1 amp (or 300 ma to 1000 ma). I doubt if either of your goodies draw more than a few milliamps so you should be good to go.
Mel
Modeling the early to mid 1950s SP in HO scale since 1951