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Registered Member #1412
Joined: Thu Mar 27 2008, 04:07PM
Location: Taipei Taiwan
Posts: 278
When building SSTC, can I wind primary winding on secondary?Or the diameter of primary winding should be bigger than secondary?
Why DRSSTC primary is similar to SSTC instead of SGTC?Since it is similar to SGTC rather than SSTC,Why most DRSSTC didn't use flat primary like SGTC?http://wiki.4hv.org/index.php/
Dual_Resonant_Solid_State_Tesla_Coil
And is DRSSTC portable?If I move it to different places,will the resonant frequency of coil change and need to be re-tuned?
Registered Member #1875
Joined: Sun Dec 21 2008, 06:36PM
Location:
Posts: 635
With a SSTC, the voltages are lower and efficiency rises with high coupling, so some people wind the primary over the secondary, but make sure you have some kind of insulation between your coils (maybe a few layers of teflon and/or electric tape).
DRSSTC primaries are usually closer to SGTC primaries, especially the high power ones. DRSSTCs with cylindrical primaries tend to have the secondary raised close to the top of the primary.
A small DRSSTC would be portable. As for tuning, you should always have an adjustable primary tap as well as some extra primary for tuning on the run. The resonant frequency can possibly change depending on your surroundings, how much you are killing your tank capacitor, and what you had for breakfast.
Registered Member #3964
Joined: Thu Jun 23 2011, 03:23AM
Location: Valenzuela City
Posts: 332
"The resonant frequency can possibly change depending on your surroundings, how much you are killing your tank capacitor, and what you had for breakfast."
very funny dude,. sorry for the poster, I just can't help laughing with what I've read! =D hehe
Registered Member #2292
Joined: Fri Aug 14 2009, 05:33PM
Location: The Wild West AKA Arizona
Posts: 795
Flat primary's work very well on DRSSTC's. Matter in fact I think they work better. I use a flat primary on my larger DRSSTC and it has effective coupling up to 0.2k which is rather high for a DRSSTC. I think this photo speaks for it's self
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SSTC and DRSSTC primary
