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Forums
4hv.org :: Forums :: Tesla Coils
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Basic SGTC Question(s)

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coillah
Wed Jul 16 2008, 07:33PM Print
coillah Registered Member #1517 Joined: Wed Jun 04 2008, 06:55AM
Location: Chico CA
Posts: 304
So I am considering an asynchronous RSG because of the ability to "tune" the bps. However, on richie's coil page it sounds like he suggests using a synchronous gap because of the more consistent results. I'm all for designing it right on the first try, but it also sounded like you can get some bigger sparks from AS.

I am guessing that a coil that continuously sparks is sync and one that has small sparks and then has large sparks here and there is AS?
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Mads Barnkob
Wed Jul 16 2008, 07:44PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
if you got access to a single/three phase input frequency inverter with 3xVin output, you could run a asynchronous motor with the ability to tune it.
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Shaun
Wed Jul 16 2008, 09:59PM
Shaun Registered Member #690 Joined: Tue May 08 2007, 03:47AM
Location: New Jersey, USA
Posts: 616
Or you could just feed the coil with HVDC and then ARSG becomes just "RSG". Its a little extra work, with HV diodes and whatnot, but if you really like the idea of adjustable BPS it may be the way to go.
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Hhhhhhhhh
Fri Jul 18 2008, 07:40AM
Hhhhhhhhh Registered Member #1340 Joined: Thu Feb 21 2008, 12:47AM
Location:
Posts: 23
my bad
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quicksilver
Fri Jul 18 2008, 01:50PM
quicksilver Registered Member #1408 Joined: Fri Mar 21 2008, 03:49PM
Location: Oracle, AZ
Posts: 679
In a very old scan of an electronics magazine there was an example of a SGTC wherein the designer used a highly insulated extension of the threaded potion of the spark gap.

Not commenting on the safety of tuning while the coil is running, I would imagine that micro fine adjustments would be possible IF this could be in place with sufficient safety agenda (a LONG extension).
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coillah
Fri Jul 18 2008, 07:25PM
coillah Registered Member #1517 Joined: Wed Jun 04 2008, 06:55AM
Location: Chico CA
Posts: 304
ah, I see what you're saying... could adjustable bps could produce different tones? (aka musical notes)

either way, the more I read, the more it seems like I can get a bit more power from a synchronous rsg.

which is why I am going to do it!

it looks like there are a bunch of cheap induction motors on ebay, I'll post one here to have you guys check it out
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