Skip to main content

Reply to "Dimming accessory lighting"

So as suggested by others 5 variable output transformers would do the trick.  That is clearly the most straightforward Keep-It-Simple alternative.

Others have suggested driving your lighting with DC voltage (instead of train transformer AC voltage).  I can't think of any train lighting accessories that don't work with DC voltage.  The point being there are inexpensive adjustable DC-output voltage modules to fine-tune the voltage to the 5 circuits.  Inexpensive means just a few dollars a piece for the voltage modules.  But this does requires some attention to detail - using a voltmeter - possibly requiring some soldering - and so on.  There were some pictures posted but the economical DC-output adjustable modules typically use tiny screwdriver controls.  If doing this once a year or whatever then it's no big deal.  But if something you might be doing every day (or whatever) to suit your fancy at the time, it can be tedious...in my opinion of course.

Since you asked for alternatives, a previous post introduced the idea of using a string or ladder of diodes to provide multiple voltages from which you can pick and choose.  This method does not provide continuously-variable fine tuning.  However I think you'll find it difficult to distinguish any material difference between a bulb at 11V vs. 12V.  Your-mileage-may-vary.

The point being there have been many threads about fine-tuning AC voltages for accessories. 

AC%20voltage%20dropping%20using%20bridge%20rectifiers

Above photo is from this OGR thread.  Note the title/topic of the thread is exactly what you're asking about.  For just a few $ you can wire up some bridge rectifiers to creates a string/ladder of voltages from which you can pick an choose for each of your 5 circuits.  For select-ability you could use a common and inexpensive 3-position fan speed rotary switch (high-med-low) to choose from 3 voltages representing high-med-low brightness.  Again, this alternative does not give you continuously-variable brightness but I'm suggesting 3 brightness settings per circuit might be good enough!

Attachments

Images (1)
  • AC%20voltage%20dropping%20using%20bridge%20rectifiers

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
×