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Forums
4hv.org :: Forums :: Tesla Coils
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Alexandre
Tue Jan 15 2008, 02:26AM
Alexandre Registered Member #1228 Joined: Tue Jan 15 2008, 01:08AM
Location: Curitiba, Brazil
Posts: 162
My 4 inch coil, powered 4 MOT, in series, 25nF cap bank, RSG with 6000 RPM.

Spark length 42" Coil in ajusted
1200363977 1228 FT14 Dsc02667

1200363977 1228 FT14 Dsc02685
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MRacerxdl
Tue Jan 15 2008, 03:19AM
MRacerxdl Registered Member #989 Joined: Sat Sept 08 2007, 02:15AM
Location: São Paulo, Brazil
Posts: 476
My 150W SGTC:

Cap Bank - 10nF 6400V
Xfrmr - 5kV 30mA
Primary - 9 Turn with 7cm In Diameter.
Two Secondaries: One with the primary (800 Turns arround ~2.2' (5.9cm)) and secondary at free air with 1000 turns arround 2'.
Topload - The Free Air coil has a block of aluminium with a iron bar pointing to other topload. On the other secondary there is a pvc cilinder with Aluminium foil arround.
Sparks: 20cm

The free air secondary coil low side (in the beginning of the coil) is wired with the low side of the other coil. A different bipolar coil :P
(Thats is not a good work, I making a new one)


1200367131 989 FT14 Coil2

1200367131 989 FT14 Dsc01602
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Wirenut
Sat Jan 19 2008, 07:53AM
Wirenut Registered Member #141 Joined: Sat Feb 11 2006, 01:14PM
Location: Southern California
Posts: 96
Here is my miniBrute based DRSSTC putting out 48" sparks
power is from a half-bridge of hgt1n40n60a4d igbts
toroid is a John Freau 4x13


1200725766 141 FT1630 Img 0172



1200725766 141 FT1630 Img 0131



1200725766 141 FT1630 Img 0133
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Alexandre
Mon Feb 04 2008, 02:37AM
Alexandre Registered Member #1228 Joined: Tue Jan 15 2008, 01:08AM
Location: Curitiba, Brazil
Posts: 162
Tesla Coil

Cap - 5.2nF @ 14400V (9 in series 47nF @ 1600V)
Primary - 12 turns
Power - NST 8Kv @ 30mA
Static Spark gap - 4 tubs of cooper

Streamers - 20cm

Enjoy tongue
1202092402 1228 FT14 Pict0034

1202092402 1228 FT14 Pict0041
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Alexandre
Mon Feb 04 2008, 02:50AM
Alexandre Registered Member #1228 Joined: Tue Jan 15 2008, 01:08AM
Location: Curitiba, Brazil
Posts: 162
Mini Tesla Coil

Cap - 1nF @ 20kV
Primary - 9 turns
Secondary - #37 in 20cm
Power - NST 8kV @ 30mA


Streamers - 7cm


enjoy cheesey
113f

1202093402 1228 FT14 Pict0326
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Hrothgar
Sun Feb 17 2008, 11:25PM
Hrothgar Registered Member #1180 Joined: Mon Dec 17 2007, 12:26AM
Location: Nope
Posts: 28
This is Ghettor 98, being consisting of nearly 98% blood and rage, it is fully capable of burning out fuses and emptying my wallet. The coil is made of stools, tangerine boxes, cardboard, and duct tape, the contraption produces 2 foot long streamers in a pleasing ultraviolet tone.
1203290736 1180 FT14 Ghettor Labled
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Arcstarter
Thu Feb 21 2008, 04:45PM
Arcstarter Registered Member #1225 Joined: Sat Jan 12 2008, 01:24AM
Location: Beaumont, Texas, USA
Posts: 2253
The sparks are not huge but i have a little better performance now.

primary is currently 27 turns
feedback is 24 turns
i used one unballasted MOT
secondary is 900 turns of about 28-30 gauge
large sharpened nail breakout point
1203612302 1225 FT14 Vttc Sparks 1
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Ken M.
Thu Feb 28 2008, 11:14PM
Ken M. Registered Member #618 Joined: Sat Mar 31 2007, 04:15AM
Location: Us-Great Lakes
Posts: 628
My rendition on Steve Wards mini SSTC.

Driver: 555 interupted with CT feedback
Power tronics: Half-bridge of IRFP260 and 750nF caps
Primary: 4 turns of 8AWG wire
Secondary: 4"X20" 30AWG enamled wire on PVC pipe
Arc length w\o toroid: ~6"
with toroid: ~9"
Fres:325KHz


SD530551



SD530553
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uzzors2k
Sat Mar 15 2008, 09:23AM
uzzors2k Registered Member #95 Joined: Thu Feb 09 2006, 04:57PM
Location: Norway
Posts: 1308
My palm-top class E coil. With interrupter and audio-modulation. Feedback provided by CT. Draws approximately 80W from 50V supply.

Driver: 4046 PLL driver
Secondary: ~0.2mm on 5 * 8 cm former
Fres: 1.38MHz

Project thread.

1205438556 95 FT38197 Finished Classe Coil Cwstreamer
1205438556 95 FT38197 Palmtop Classe
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Mates
Sun Apr 13 2008, 12:04AM
Mates Registered Member #1025 Joined: Sun Sept 23 2007, 07:53PM
Location: Czech Rep.
Posts: 566
Single switch tl494 driven coil...(my own design)

Primary: 6turns
Sec: 1300turns (height 50cm)
Freq: 170 KHz
Transistor: BUP314 (two in parallel)
Power consumption: regulatable by changing number of caps in the circuit. Max power tested approx. 2KW (5minutes)
Streamers length: Approx. 40cm at 2KW


1208045029 1025 FT14 Ghetto

1208045029 1025 FT14 Sg101949
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