If you like Bipolar Tesla Coils
Dr Hankenstein, Mon May 02 2016, 06:10AMHere's the link to the build of our Hellcat Bipolar Tesla coil @
Kind regards,
Dr. Hank
Re: If you like Bipolar Tesla Coils
Mads Barnkob, Mon May 02 2016, 06:26AM
Wonderful pictures of a nice piece of coil.
Do you have more pictures detailing the bridge build?
Mads Barnkob, Mon May 02 2016, 06:26AM
Wonderful pictures of a nice piece of coil.
Do you have more pictures detailing the bridge build?
Re: If you like Bipolar Tesla Coils
Sulaiman, Mon May 02 2016, 06:59AM
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)
Sulaiman, Mon May 02 2016, 06:59AM
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)
Re: If you like Bipolar Tesla Coils
Dr Hankenstein, Tue May 03 2016, 06:28AM
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
Dr Hankenstein, Tue May 03 2016, 06:28AM
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
Re: If you like Bipolar Tesla Coils
nzoomed, Tue May 03 2016, 09:19AM
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?
nzoomed, Tue May 03 2016, 09:19AM
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
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?
Re: If you like Bipolar Tesla Coils
Dr Hankenstein, Wed May 04 2016, 07:21PM
To answer your question, they both work the same. The bridges are interchangeable.
Dr Hankenstein, Wed May 04 2016, 07:21PM
To answer your question, they both work the same. The bridges are interchangeable.
Re: If you like Bipolar Tesla Coils
Kizmo, Wed May 04 2016, 07:36PM
I have always wondered how one should tune a bipolar DRSSTC. Could you shine some light on it for us please? :)
Kizmo, Wed May 04 2016, 07:36PM
I have always wondered how one should tune a bipolar DRSSTC. Could you shine some light on it for us please? :)
Re: If you like Bipolar Tesla Coils
nzoomed, Wed May 04 2016, 09:25PM
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?
Is this possible?
nzoomed, Wed May 04 2016, 09:25PM
Kizmo wrote ...
I have always wondered how one should tune a bipolar DRSSTC. Could you shine some light on it for us please? :)
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?
Is this possible?
Re: If you like Bipolar Tesla Coils
redruM69, Wed Jun 15 2016, 05:03PM
I noticed you put metal flake in the varnish on the secondary. Wouldn't this greatly increase the chance of insulation breakdown?
redruM69, Wed Jun 15 2016, 05:03PM
I noticed you put metal flake in the varnish on the secondary. Wouldn't this greatly increase the chance of insulation breakdown?
Re: If you like Bipolar Tesla Coils
woodchuck, Wed Jun 15 2016, 05:30PM
Are you sure you didn't trigger the 1 Nov earthquake? :)
Your shop/lab/garage/living room is outstanding.
woodchuck, Wed Jun 15 2016, 05:30PM
Are you sure you didn't trigger the 1 Nov earthquake? :)
Your shop/lab/garage/living room is outstanding.
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