Node Transducer (Thaumcraft 4)

The Node Transducer is a block added by Thaumcraft 4. It is used to energize Aura Nodes to provide Thaumcraft 4's centivis power.

Energizing a Node
For an Aura Node to be energized, first a Node Stabilizer needs to be placed below the node. Then the Node Transducer needs to be placed above the node and powered with Redstone. Once energized, the node will supply centivis to any Vis Relays within 8 blocks of the node, which in turn can relay the centivis stream to other Vis Relays, or provide power to a variety of Thaumcraft devices as well as devices from a number of Thaumcraft 4 addons.


 * Infernal Furnace uses Ignis Vis to accelerate its operation.
 * Advcanced Alchemical Furnace uses Ignis Vis to maintain operational heat, and uses Aqua and Perditio vis per item smelted.
 * Focal Manipulator draws the vis required for the enchantment selected.
 * Vis Charge Relay draws the vis required to recharge the Wand or Scepter.
 * Flux Scrubber draws Aer vis to clean up flux spills in the area.
 * Essentia Crystallizer draws Terra Vis to operate.
 * Vis Stone or Amulet of Vis Storage can draw Vis from nearby Vis Relays to charge itself and devices in the players inventory.
 * Arcane Bore Base draws Perditio vis to power the Arcane Bore.

Calculating the Centivis output and requirements
The centivis, or more properly, centivis per tick (cv/t) rating of a node is a measure of how many 1/100's of a full vis a node can transfer per tick. So, for example, if a 1 ignis cv/t node was being used via a Vis Charge Relay to recharge a wand, it would be able to recharge 1 point of Ingis every 5 seconds, as it would take 5 seconds to transfer 100cv at 20cv per second.

The actual centivis rating that an energized node has in each aspect is the square root of the highest source of that aspect on the original node. This is an integer value (i.e truncated, or rounded towards zero.). For a node with compound aspects, an aspect is a source of a primal if that primal is used to make that aspect or any of the aspects that it is ultimately made from. So, a 20 Potentia, 10 Ignis node would be calculated as though it was a 20 Ignis, 20 Ordo node. If the node being energized is Bright, or Pale, a 20% bonus (or penalty) is applied to the source aspect total BEFORE the square root is taken.

Most devices that draw Centivis do not draw CV every tick, but they will draw a packet of the available centivis to fill an internal buffer - typically 10cv, and then draw from that internal buffer to remain in a powered state - as little as .5cv per tick - requesting cv only when the internal buffer is empty. (The example presented would only draw a 10cv packet every 20 ticks). Each time a device does draw a cv packet, the path taken will pulse with the color of the aspect drawn.