Amazon.com: Sunnytech Spark Gap Tesla Coil Artificial Lightning Generator Touchable High Efficiency Science Project SGTC Tesla Coil Magic Prop WH12 : Toys & Games
Spark gap - Wikipedia
2 pcs SPARK ARC GAP CAPACITOR 1 - 2 KV 0.75PF GAP KAP | eBay
Spark Gap
Small Spark Gap Tesla Coil
Triggered Spark Gap Switch - Information Unlimited
What kind component is this? - Electrical Engineering Stack Exchange