I can't help with the schematic, but two good sources of parts are All Electronics in Van Nuys, California (http://www.allelectronics.com) and Mouser Electronics in Mansfield, Texas (http://www.mouser.com)
Both are much cheaper than Radio Shack, although you get stuck with postage charges which may make the cost come out the same if you're only ordering small lots.
http://www.awrr.com/cdsupply.html I have built this one.
Indicators. http://www.awrr.com/indicator.html
http://users.rcn.com/weyand/tractronics/articles/swartcl/swartcl.htm
Kind of complicated.
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.
Looking at my nice new AllElectronics Catalog (got it in the mail yesterday) they have a flat rate charge of $7.00 for any order within the contiguous 48. Standard size SPDT momentary toggle switches run 2 bucks each, while the 3 amp 50 piv diodes you need are 15 cents apiece in lots of 100. (Minimum order is 3, for 70 cents. IIRC, da Shack wanted something over a buck for two.) The rest of their prices are equally low, with quantity discounts (except on the SPDT toggles, which are a new item.)
I ordered 100 diodes plus rotary switches and handles a short while back, and got them priority mail a couple of days later. Used their web site. (If you get the impression that my control system uses diodes in carload lots, you're right!)
Disclaimer - my only connection with AllElectronics is as a satisfied customer.
Chuck (modeling Central Japan in September, 1964)
http://home.cogeco.ca/~rpaisley4/CDPSU.html has a series of schematics for CD power supplies. Complexity is based on what you want the unit to do - LED charge indicators, fast charging, etc. I personally favor the current blocking circuits about half way down the page. Total capacitance needed depends on number of machines to be driven simultaneously, and the current needed by the machine. Atlas switch machines draw much less current than Peco switch machines do.
my thoughts, your choices
Fred W
Erik Fiske
I couldn't fix your brakes, so I made your horn louder
richg1998 ,
I looked at the PS on awss.com. it looks pretty easy. Will it handle several turnouts at the same time, such as in route control? I've read so much on this stuff, I'm going blind. I'm wondering if a commercial PS would be the way to go and just be done with it.
I use the power supply to operate a three way turnout that has twin coils. I either switch one or two coils depending on the route needed. I cannot comment on how many could be operated at once.
I have seen an article in Model Railroader magazine on what you would like to do but I am not sure I could find the article in my issues right now.
Maybe comments from others might help.
I used a Radio Shack power supply, a momentary push button and some Atlas Twins I had laying around. I use Kato turnouts which has 2 lead coil machines. I know Atlas uses 3 lead machines. Works for me, probably was the cheapest but it was easy to set up.
Gary