Difference between revisions of "Desktop Jacob's Ladder"

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== Status ==
 
== Status ==
Circuit Assembly
+
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 ==
 
== Justification ==
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== Materials List==
 
== Materials List==
* A car ignition coil, preferably and old coil that looks like a tall cylinder
+
=== Resistors ===
 +
*(7) 1K resistors
 +
*(1) 100K Pot with shaft
 +
*(1) 100K Trim Pot
  
''(I'll fill out the rest of this tonight at home)''
+
=== 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 ==
 +
[[Image:DJLside1.jpg]]
 +
[[Image:DJLside2.jpg]]
 +
[[Image:DJLside3.jpg]]
 +
[[Image:DJLside4.jpg]]

Latest revision as of 14:53, 27 October 2007

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

DJLside1.jpg DJLside2.jpg DJLside3.jpg DJLside4.jpg