Desktop Jacob's Ladder
From Makers Local 256
Status
Completed, and I believe the circuit has been debugged. It sparks well, but I think the voltage boost is not enough to jump a decent sized gap to allow thermal convection to occur and let the spark rise. Still looking into it.
Justification
Come on, a desktop Jacob's Ladder run off AA batteries? Too Fucking Cool.
Materials List
Resistors
- (7) 1K resistors
- (1) 100K Pot with shaft
- (1) 100K Trim Pot
Caps
- (1) 4.7 uF electrolytic
- (1) 0.001 uF ceramic
Chips
- (1) 2N3904 NPN Trans.
- (1) IRF530 N-channel MOSFET
- (1) 556 Dual Timer IC
- (1) Indicator Led
Misc
- (1) IC Socket for 556 chip
- (1) PCB (homemade)
- (1) Car ignition coil, preferably an old-type coil that looks like a tall cylinder
- (1) SPST switch
- (1) 12 Volt Battery Pack (8-AA pack)
- (1) Metal Coat Hangar
- (1) Project Case
- Hookup wire (18Ga, insulated)
- Hot Glue
Pics
