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Re: [TCML] Is my 10" Tesla Coil Illegal ? ?
It is a Caster Oil filled HV transformer. It has 5 taps on the primary to get several different output voltages. Primary is 240 volts 60 amps. Output is 14K, 15K, 16K, 17K, 18K volts. This transformer is designed to be a step up HV transformer. It is not a power line pole transformer hooked up backwards to step up the voltage. I am using the 14K output on my 10" TC.
-----Original Message-----
>From: otmaskin5@xxxxxxx
>Sent: Jan 21, 2010 6:33 PM
>To: tesla@xxxxxxxxxx
>Subject: Re: [TCML] Is my 10" Tesla Coil Illegal ?
>
>Gary, what kind of transformer do you have driving your coil? Dennis Hopkinton MA
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>-----Original Message-----
>From: gary350@xxxxxxxxxxxxx
>To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
>Sent: Tue, Jan 19, 2010 5:22 pm
>Subject: Re: [TCML] Is my 10" Tesla Coil Illegal ?
>
>
>I don't have a control cabinet. Look at the photo. The HV transformer is
>etting directly under the primary coil. The three .01 uf caps in parallel are
>nder the primary coil too next to the transformer. The variable speed vacuum
>an spark gap is there too. I have the fan speed on the spark gap turned up
>retty high probably close to 90% speed. I turn the coil on/off several times
>nd adjust the spark cap air speed I can dial in maximum spark length real easy
>y changing the fan speed. I keep moving my target and adjusting the fan speed
>ntil I get max length sparks. Now that I think about it maybe it has something
>o do with my variable speed vacuum fan spark gap. No tellin what is going on
>nside that spark gap with all the high speed air braking up the arcs in the
>ap. I have a strike rail around the outer edge of the primary coil connected
>o ground too. I have two 240 VAC wires running from the HV transformer into
>he shop. I am using a Lincoln Arc welder as current limiting. I am using a 60
>mp braker as the on/off switch. The high voltage transformer is 14kv output.
>ax output is about 12KW I can crank the power up to 14KW but the output does
>ot get longer. At 10KW sparks get slightly shorter only by about 6 inches.
>ith the targets removed I get sparks everywhere so I have to cover all the
>ires, caps, transformer, gap on the ground with pieces of sheet metal for
>rotective shielding they are all grounded. I have about 20 well used bad 4ft
>luorescent light bulbs I can stick them in the ground all around the TC in the
>ard and they all light up. Bottom end of secondary is grounded to earth ground
>ith a #6 copper wire to a 6 ft ground rod.
>http://home.earthlink.net/~gary350/tc10-4.jpg
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>-----Original Message-----
>From: mddeming@xxxxxxx
>Sent: Jan 19, 2010 3:34 PM
>To: tesla@xxxxxxxxxx
>Subject: Re: [TCML] Is my 10" Tesla Coil Illegal ?
>
>
>Hi Gary,
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>Sounds like you have a lot of RF energy coupling into your distribution system.
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>1) Do you have any hash filters on your lines going to your control cabinet? If
>ot, definitely install some.
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>2) Is your RF ground short and solidly connected at both ends? A long or poorly
>onnected RF ground line can act as an antenna.
>
>3) Are there any power lines or phone lines running across or very near to your
>ack yard? This may require moving the coil if you are coupling to them..
>
>
>A battery-operated radio will tell you about how far you're radiating. When
>urned on, the LCD of a hand-held cheap calculator will go crazy in the magnetic
>ield of a coil. If radiating is the problem, you may get an FCC visit. If you
>re linking back through the power lines you can be in trouble under various
>nuisance ordinances". If someone claims that you are "knowingly interfering
>ith security systems", then you can be in deep stuff under the anti-terrorist
>nd conspiracy legislation.
>
>Matt D.
>
>
>-----Original Message-----
>From: gary350@xxxxxxxxxxxxx
>To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
>Sent: Tue, Jan 19, 2010 12:56 pm
>Subject: [TCML] Is my 10" Tesla Coil Illegal ?
>
>
>This time of the year when the air is cold and the humidity is extremely low
>tatic electricity is very high I get shocked every time I get IN or OUT of my
>UV, take off my jacket or put on my jacket. If I move the blankets in bed at
>ight I see all kinds of sparks. It is perfect for firing up my Tesla Coil and
>etting some very long sparks. But I worry that this might be illegal. My 10"
>>C makes 12 foot arcs I can make a 27 ft circle of arcs and sparks in the back
>ard with the 3 ft top load. It makes every motion detector light and every
>ecurity alarm system go off in a 4 block radius around my house. After dark I
>an see motion detectors lights going on/off, on/off, on/off, on/off, on/off, in
>>ll directions as far as I can see. My automatic garage door and all the
>eighbors garage doors are freaked out going up/down, up/down, up/down, up/down,
>>p/down, up/down, over and over. I can hear security alarms in all directions.
>> road my bicycle through the neighbor hood and I can find alarm systems going
>ff 4 blocks away in several directions from my house. It totally distroys TV
>nd it makes no difference if you have cable, satallite, or antenna TV is
>otally wiped out all reception for several blocks. I don't fire up my 10" TC
>ery often anymore I worry it might be illegal.
>
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