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Jacob's Ladder, 5-Foot Plasma Arc (Downloadable Plans)

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Product Description

5-Foot Floor Model Solid-State Plasma Arc Jacob's Ladder

Generates a real, impressive, and spectacular amount of flaming plasma.
These can be custom made for museums special displays with many options. All units have automatic shutdown for accidental contact for anti shock protection.

Another Info Unlimited first! We are the only ones who currently make this Jacob's Ladder, which is not a typical Jacob's Ladder -- instead of a thin and wispy spark, this Jacob's Ladder outputs a wide, soft, and quiet plasma flame. It can be left running indefinitely and the noise is barely noticed. Also, a normal Jacob's Ladder uses dangerous transformers which are potentially lethal if the output is touched while running. But this plasma arc Jacob's Ladder is inherently safe -- none of the electronics, the transformer, or the ladder are lethal (they may cause a burn if touched when running, but they are not lethal). These inherent safety features are a marked improvement over a standard Jacob's Ladder.

These are downloadable plans (also available as paper plans), requiring parts and assembly.
Or fully assembled and ready to use.


The spectacular display of a plasma arc, softly dancing as it moves up the metal rails, is sure to fascinate and amaze all those who watch it. A traveling wave of plasma is produced that starts at the base of the ladder electrode elements, rising and widening as it ascends and evaporates into space. The arc can reach a linear width of over 6 inches, but it's curved length can be well over a foot. It then repeats and continues traveling up the ladder, evaporating and restarting.

The arc texture can be varied by a simple control that also is the main power switch. Texture can be a thin wispy like spark to a heavy hot energetic plasma arc.

The metal "ladder" itself runs about 5 feet high, with the device having an overall height of about 6.5 feet. Includes a music option, safety shutdown, variable spark texture, remote pushbutton starting, timer option (variable up to 15 minutes, or turn off timer for continuous operation), and active air cooling making it suitable for 24/7 operation. May be wired for 115 or 220VAC at customer's request. The outer dimensions of the protective tower enclosure are 12" x 8" but can be built to a different size if you have special requirements (feel free to send us a drawing if you would like a different design).

The base of the unit is formed from sheet aluminum and houses all the electronics with the controls being on the from panel. An internal fan supplies a slight over atmosphere pressure at the top of the tower to keep the ladder cool, and also eliminates arc hangup from occuring.

Control options include a standard on/off pushbutton (good for visitors at museums, for example), or with an adjustable timer that can be set to run the Jacob's Ladder anywhere up to 15 minutes after pushed (useful for some presentations), and a remote switch that can be plugged into the control panel to allow operation from a distance whenever the lecturer desires (good for other types of presentations where the lecturer wants more control over the Jacob's Ladder and also wants to move around the room while talking).


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