A quick google produced this:
at: http://www.tamvalleydepot.com/support/frogjuicerinfo.html
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I'd use 2 juicers, as suggested, and power the two upper frogs with one and the two lower frogs with the other.
The Hex Frog Juicer manual indicates that you can use the same output to drive two frogs if they will always have the same polarity as each other.
Great diagram, by the way.
It takes an iron man to play with a toy iron horse.
In the old style ones, those rails are powered from the frog, electrically connected to them Dunno about the DCC friendly version - I'd have to assume they have power through simialr to Atlas turnouts, otherwise a lot more locos would stall, that's a lot of rail to not be powered if the frog is dead plus the rails in the middle. Only the longest locos could pass through such a contraption.
If the center rails are powered from the frogs, using the frog juicer would power those rails as well and no problem. If those reails already hav power matchign the proper stock/closure rail, then there is no problem, there is no need for them to change polarity. Those middle rails are clearly insulated at the frog and where they touch each other, so either they are completely dead (unlikely) or have jumpers under the frog to feed them.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
Excuse me for butting in without any real experience with the frog juicer, but for some reason, I find the "puzzzle value" of questions like this irresistable.
Don't you also need to juice the X's in the crossover? (is that a frog?)
I would think you need 4 juice points. One each for the top and bottom pair of turnout frogs, and one for each of the X-frogs in the crossover.
rrinker Check on the Tam Valley Yahoo group or ask directly at Tam Valley if they support running 2 frogs with 1 juicer output, Duncan is pretty responsive.
Check on the Tam Valley Yahoo group or ask directly at Tam Valley if they support running 2 frogs with 1 juicer output, Duncan is pretty responsive.
Rich
Alton Junction
LION does not juice the frogs. Frogs must fend for themselves. LION uses relays to apply power according to the logic of the alignment. On layout of him, no other power is present anywhere else on the switch.
On Route of the BroadwayLION, we do not even bother to power the entire crossover. with 48 wheel pickup it was deemed quite unnecessary.
ROAR
The Route of the Broadway Lion The Largest Subway Layout in North Dakota.
Here there be cats. LIONS with CAMERAS
Use 4 outputs of one quad Frog Juicer. Then there is nothing to calculate or figure out. Theoretically, the top 2 should both be the same polarity, the bottom two should both the the same polarity, any other route lined through the crossover would be a conflict and you'd only need a dual frog juicer. Check on the Tam Valley Yahoo group or ask directly at Tam Valley if they support running 2 frogs with 1 juicer output, Duncan is pretty responsive.
At one time, I had three double crossovers on my layout. But, I had so much trouble with derailments and dead spots that I finally removed two of them, keeping only one that I considered essential. My latest issue over the weekend was a dead closure rail, so I had to solder a jumper wire to restore power. So, it is only a matter of time now until I remove the last remaining double crossover and replace it with a pair of crossovers.
The double crossover is a marvel or engineering, but I consider the Walthers Shinohara DCC Friendly Double Crossover a little too fragile for my taste. Now, I am sure that some will report that the double crossover on their layout has been there 20 years without a problem, to which I say, good for you. This particular double crossover has been on my layout for nearly 10 years, but it has been a maintenance nightmare.
Now, on to my current issue. I recently purchased a Bowser V-1000 switcher, and I noticed that at slow speeds, the loco stalls on the straight through routes. So, I started testing each and every rail segment for power. The following photo shows the power to each rail segment, blue to the upper rail and red to the lower rail. The uncolored (white) segments show the guard rails, crossing diamond, and frog rails. It just so happens that the front and rear trucks of the V-1000 loco fit perfectly over the "turnout frogs". So, at slow speeds, the loco stalls for lack of power.
I believe that the solution is to power the frogs which are currently isolated dead metal frogs, perhaps using Tam Valley Depot Frog Juicers. The following photo shows the area in green that would require power to eliminate the stalls.
My question is, how many juicers would I need? Would two do it, one juicer on one of the upper frogs and one juicer on one of the lower frogs?
I look forward to your comments.