Used the biggest board (the gold one), but put it in first. Thanks for that info.That depends on the board. The the largest board will take 4 tubes. You might be having the problem of putting the board in 1st. You need to place all of your tubes 1st then put the board in. That will place all of the tubes into the board.
That depends on the board. The the largest board will take 4 tubes. You might be having the problem of putting the board in 1st. You need to place all of your tubes 1st then put the board in. That will place all of the tubes into the board.
This may be of some use to you: http://ftbwiki.org/Electrical_Engine#Upgrades
A little bit of math and you should be able to figure a good ratio of MJ to EU.