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Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
WOW !
Nice work.
just curious, what attracts you to bipolar coils ? (I've never made one, and never will at your scale :)
P.S. in terms of mechanical strength, left-right forces on the secondary go to bending the 'tombstones' maybe some sort of diagonal struts / triangles ... at least for transport/movement.
P.P.S. how is the audio with 27 kHz resonant frequency ? (a very sharp, low-pass audio filter with a cut-off of 10 to 12 kHz before your 'modulator' may help) (something like two of these in series, datasheet gives an example)
Registered Member #1642
Joined: Sun Aug 17 2008, 11:36PM
Location: Black Canyon City
Posts: 96
Thank you for the kind words!
As far as photos of the actual bridge go; I'm not sure what I have in my archive.
And for the second question: Originally struts, bracing, etc. was part of the project (they were in fact manufactured) and considered as a "must have" requirement for holding the Tesla Coil intact. We discovered after installation of the secondary that the Poly carbonate (Lexan) tombstones were so strong, that no extra bracing would not be required.
Third question: Why Bipolar? My answer:
1) no earth ground required; only equipment grounding.
2) very low overall power consumption. It appears that the bipolar type of Tesla Coils draw about one fourth the power of a similar output quarter wave resonator for the same amount of spark. (At least this has been our experience)
Last but not least:
Audio at 27khz: Incredible Bass; sounds like a 500kv substation switch being opened, it's bad ass!
Registered Member #54503
Joined: Sun Feb 22 2015, 10:35PM
Location: New Zealand
Posts: 288
Dr Hankenstein wrote ...
Thank you for the kind words!
As far as photos of the actual bridge go; I'm not sure what I have in my archive.
And for the second question: Originally struts, bracing, etc. was part of the project (they were in fact manufactured) and considered as a "must have" requirement for holding the Tesla Coil intact. We discovered after installation of the secondary that the Poly carbonate (Lexan) tombstones were so strong, that no extra bracing would not be required.
Third question: Why Bipolar? My answer:
1) no earth ground required; only equipment grounding.
2) very low overall power consumption. It appears that the bipolar type of Tesla Coils draw about one fourth the power of a similar output quarter wave resonator for the same amount of spark. (At least this has been our experience)
Last but not least:
Audio at 27khz: Incredible Bass; sounds like a 500kv substation switch being opened, it's bad ass!
Kind regards, Dr. Hank
How exactly do these work in relation to a normal DRSSTC? Is there anything different i have to do with the driver etc?
I imagine the physics are alot different in the coil ratio?
Registered Member #54503
Joined: Sun Feb 22 2015, 10:35PM
Location: New Zealand
Posts: 288
Kizmo wrote ...
I have always wondered how one should tune a bipolar DRSSTC. Could you shine some light on it for us please? :)
Yes im wondering the same thing.
I might build one, i wonder if there is a way of multiplexing a MIDI stereo signal through one in such a way that you could use it as a left and right channel on the same unit?
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If you like Bipolar Tesla Coils
