The Seductobot Jacob’s Ladder

FEBRUARY 2011

MATERIALS
- 10kV neon sign transformer
- 1930s Rimu cabinet
- Metal pudding basins
- High voltage glass bushings
- Restaurant wine glass holders
- Key switch
The Seductobot Jacob’s Ladder was made for a local show, The Seductobot, where it featured in a stereotypical mad scientist’s laboratory. Many thanks to Frampton Signs for the equipment and assistance.
If you’re making one of these bad boys, I’d highly recommend using for electrodes the rack things that restaurants use for storing glasses upside-down. They’re not only sturdy and cheap, but they conveniently have a kink in them, which is perfect for establishing the V shape.
I’d also recommend using slightly more then 10kV, because without an additional central so-called ‘Gabriel’ electrode it’s a bit fiddly to get the spark gap just so.
This unit is currently out-of-action due to an on-set incident. Word for the wise – it’s better to secure electrodes to something non-fragile and sturdy (i.e., the enclosure) rather than to glass bushings.