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Registered Member #3165
Joined: Sat Sept 04 2010, 03:24PM
Location:
Posts: 13
Hi, i'm new to the forum I'm looking to build a smallish Tesla coil, would this one be good enough. I think it's 7.5kV, so i'm guessing it's ok? Thanks!
Registered Member #480
Joined: Thu Jul 06 2006, 07:08PM
Location: North America
Posts: 644
Grenadier wrote -
"OBITS require external current limiting, otherwise they burn themselves out."
This is NOT true. Oil Burner Ignition Transformers (OBITs)are intended to be powered directly by AC line voltage; no form of current limiting is required. 15 seconds of Googling would have yielded more information about the Danfoss OBITs:
Because these are solid-state, high frequency modules, they probably won't work for driving a conventional AC spark-gap Tesla coil. However, because of their high frequency AC output (20KHz) they might be suitable for use in a Cockroft-Walton voltage multiplier.
Registered Member #3165
Joined: Sat Sept 04 2010, 03:24PM
Location:
Posts: 13
Thanks. There's one going very cheap on ebay at the moment so i might give it a go. I don't have the money for an NST right now and since this is my first coil i'm not expecting much.
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
its a switchmode NST, not usable for a SGTC unless you rectify it (but you still cant benefit from the resonant cap charging like with a line frequency NST).
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Will this transformer do?
