@LOVETJ posted:
...The LEDs must be DC, but are the 6V grain of wheat bulbs also DC voltage?
The GOW incandescent bulbs can be driven by DC or AC.
Is the 20110 LED Lighting Regulator the correct thing to use to feed these 6V lights?
No. The 20110 is an awesome contribution to the hobby, but is not appropriate for the matter at hand. First what you want is a widget that puts out a constant/regulated voltage. The 20110 delivers a constant/regulated current.
What is the DC output voltage of the regulator if it is connected to 18VAC of track power?
Related to above answer, the 20110 outputs a constant current. It does this by varying the voltage output until it matches the desired current. So the DC output voltage can vary by many volts depending on how many LEDs are being driven.
You actually have many options. Here's one.
For about $3 (free shipping from Asia), you can get an AC-in, DC-output converter module that delivers a constant voltage. Just set the converter to a 6V output and then attach your 6V bulbs and 6V LEDs. The photo above shows a digital voltmeter but that's just to show this converter was adjusted to 6V; presumably you have a DC voltmeter available to adjust the output to 6V DC.
If you are, or will be using DCS, you need to add a 5-cent DCS-inductor between the power pickups and the converter module. Unfortunately, there are minimum quantities where the DCS inductor ends up being quite expensive if you only need 1! Both these items are also available more quickly thru Amazon though typically 2x-3x the cost of eBay/Asia.
Now here's something you (or anyone) can answer for me about the CC-0000015. I am not familiar with this. But if it's called a 6V light, it needs to have a current-limiting resistor under the black heat shrink as I've circled below. Is this the case?
