![]() ![]() Doing so causes the relay to disengage and another "ping" to this resonant tank circuit, continuing the oscillation. When the voltage across the capacitor reaches a high enough value, the relay engages, shorting the capacitor. This is the start of "ringing" due to the action of the capacitor and inductance of the coil. Upon the application of a power supply, current briefly flows through the capacitor and coil. ![]() Do not power this circuit with lithium ion batteries or an expensive supply. Adding a large (1000uF+) of capacitors is needed to minimize stress to the power supply. The power supply must also be capable of maintaining constant voltage at the frequency of operation. T his circuit will inevitably destroy any relay, due to arcing at the contacts accelerating corrosion and excessive heat eventually melting the relay. Note: be sure to use high current capable relays, automotive relays are a good choice. and makes cool plasma globes out of light bulbs. this makes VERY small streamers due to its frequency. This is my schematic its easy, but it, with my power source, only makes about 20 KV (1 inch arc) at a low fixed freq. ![]()
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February 2023
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