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Registered Member #989
Joined: Sat Sept 08 2007, 02:15AM
Location: São Paulo, Brazil
Posts: 476
doctor electrons wrote ...
ScotchTapeLord wrote ...
It sounds like a tuning problem.
Seconded. Did you move the coil into an area where there are objects closer to it than when you first tuned it and had it running? My drsstc is picky about being moved from place to place, especially indoors. Outside i have no issues. I once moved it from a small room into a larger one and had the same issue as you are. No streamers unless i had a grounded target close enough to it. It would light a fluorescent bulb though. Try laying a bulb near the base and see what it does!
Yeah, that can be a thing too. 50cm distance from toroid, almost everthing in this range changes de fres of my coil. Also, the humidity and air temperature changes it a little bit (not much for detune the coil)
Registered Member #3905
Joined: Mon May 23 2011, 09:26AM
Location: Hungary
Posts: 16
I checked the Fres of the coil and you were right it changed , it wasn't dramatic but just enough to detune the coil.
Thanks for your help folks , I need to do a few test before the coil is complete, but I think I will post a video in the Add your tesla coil thread....
Registered Member #1875
Joined: Sun Dec 21 2008, 06:36PM
Location:
Posts: 635
It is possible that it was your primary that changed on its own. If you use film type capacitors, slight overvoltage will gradually decrease the capacitance over time, raising the primary resonant frequency. If you keep needing to retune, the solution may actually be a capacitor upgrade.
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DRSSTC problem, no streamers
, it wasn't dramatic but just enough to detune the coil.
, I need to do a few test before the coil is complete, but I think I will post a video in the Add your tesla coil thread.... 
