Circuit Board (Forestry)

Circuit boards are an item provided by Forestry. They can can be used to change what a farm produces or certain attributes of an Electrical Engine by attaching different Electron Tubes.

In order to make circuit boards you will need a Carpenter.

The Basic Circuit Board only has one slot, Enhanced Circuit Board has two, Refined Circuit Board three and the Intricate Circuit Board has four.

Usage
In order to use circuit board you will need a Soldering Iron and some Electron Tubes.

Place the soldering iron on your hot bar and right click to open the GUI. You can then select which machine you want to affect and then add the electron tubes to the available slots.