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Onetesla musical tesla coil DRSSTC

Grix

Grix

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I'm selling my onetesla musical tesla coil 220V version. Info here: oneTesla Musical Tesla Coil Kit

Completely built. Includes MIDI interrupter and USB-midi adapter. In pretty good shape, it has had some flashovers but nothing serious.

Price $300, that includes worldwide shipping. I accept paypal or bitcoin (3% discount because of paypal fees)

Here is a video of this very coil in action:


NB: Not a toy, risk of serious electrocution if handled improperly. Good knowledge of electronics and a multimeter for testing ground continuity is recommended. Sold as-is because of sensitive components. Spare parts is available from the onetesla site.
 
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RayJay

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I was actually looking at one of these last week! PM incoming.
 
jcranmer

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What voltage is this setup for? Do you all use 110 or 220 in Norway?
 
Grix

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It's the 220V version, sorry, forgot to put that in the post
 
Sigurthr

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For interested parties; modifying a 220V DRSSTC to run on 120V is rather easy. Doing the reverse, not so much.
 
Grix

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Still for sale due to a potential buyer backing out
 
upaa27

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Nice has a midi input. I have an ableton launchpad that would be kicka** with that.
 
Sigurthr

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To adapt to 120V you need to replace the low voltage stepdown transformer that supplies lvdc to the control electronics (if the included one isn't center tapped on the primary side - if it is then you change one connection).

I'd need to see the schematic to verify there are no other changes, but it's reportedly simple.
 
Atomicrox

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The eagle files are (or used to be) at their website. I've looked at the schematics and it *seems* it comes down to desoldering two doides and soldering a (very thick) wire between two tracks on the PCB. That's because the 110V version uses a voltage doubler on the rectified mains and the 220V uses the full wave rectified mains.

AFAIK the low VDC is done on an external PSU. Hopefully that's 100-240VAC cabable.

I did the research because I'm considering getting this instead of the new version from kickstarter (those will only be billed on the middle of this month and can still be cancelled). The new version is cooler but this would end up being cheaper... but then again I'm afraid modifying/shipping it will make it require retuning, which will be almost impossible without a scope. The new version is engineered to be fool-proof as far as tuning goes...
 
Sigurthr

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Atomic looks to be right. I hadn't seen the OneT since they first did beta testing on 4HV. The LVDC comes from a separate power supply now so just getting a 120V version of that wall wart should work well.

You can either change the input bridge rectifier to a voltage doubler to get identical spark output as you would on running 240V or leave it as is on 120V, you'd just get half power output.

A third option exists; an inexpensive step up transformer:
http://www.amazon.com/Goldsource-ST...e=UTF8&qid=1407022059&sr=8-1&keywords=stu-300

Then you don't have to modify any circuitry at all.
 
jcranmer

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Never even knew they had step up systems like that one on amazon. That's the route I think I would go, considering how inexpensive it is. (Assuming it works OK)


Sigurthr said:
Atomic looks to be right. I hadn't seen the OneT since they first did beta testing on 4HV. The LVDC comes from a separate power supply now so just getting a 120V version of that wall wart should work well.

You can either change the input bridge rectifier to a voltage doubler to get identical spark output as you would on running 240V or leave it as is on 120V, you'd just get half power output.

A third option exists; an inexpensive step up transformer:
http://www.amazon.com/Goldsource-ST...e=UTF8&qid=1407022059&sr=8-1&keywords=stu-300

Then you don't have to modify any circuitry at all.
Click to expand...
 
Sigurthr

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Yup I've used that brand of step up transformer for years. They work great. I listed the 300VA (watt) model but there are many many models. I'm not sure the wattage of the oneT, but I don't think the time averaged power input is more than 300W.
 
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