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4hv.org :: Forums :: Tesla Coils
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what awg of wire to wind secondary

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teslarevolution
Tue Jul 02 2013, 09:12PM Print
teslarevolution Registered Member #16903 Joined: Thu May 09 2013, 08:00PM
Location: Sumter, SC
Posts: 23
okay I have a 18 inch Lon 4 inch diameter pipe that I want to wind for my secondary coil for my Tesla coil but I don't know if I should use 26 or 24 AWG wire to wind it with so which one is better for winding by hand
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Sulaiman
Tue Jul 02 2013, 11:46PM
Sulaiman Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
If it's for a spark gap TC I'd go with the 26 AWG
mainly because this will result in a larger primary inductance/impedance
(all other things being equal)
which gives less wear on the spark gap due to lower operating current.
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teslarevolution
Tue Jul 02 2013, 11:55PM
teslarevolution Registered Member #16903 Joined: Thu May 09 2013, 08:00PM
Location: Sumter, SC
Posts: 23
no its going to be a solid state Tesla coil So would I go with a lower gauge wire
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Feathers
Wed Jul 03 2013, 04:36AM
Feathers Registered Member #10052 Joined: Thu Feb 07 2013, 11:31PM
Location: Overland Park, Kansas
Posts: 78
In either case, I would go with 26 gauge.

This will lower the secondary Fres, so you can use a higher Z tank circuit.

A coil that size will run better with lower peak currents and longer on times.

Don't hand-wind! Drill holes in a couple of 2X4 stubs, clamp them to the table, run a dowel through the coilform. Use a rubber band as a belt between the coilform and the end of a drill.

Wind and laquer on one jig in one go!

It will save you a lot of time and trouble.
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HV Enthusiast
Wed Jul 03 2013, 02:04PM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
Download WinTesla or JavaTC. Determine what frequency you need for your coil and go from there.

For DRSSTCs, you generally want to aim for about 50-100kHz (with Toroid) for the CM300/CM600 based coils, and perhaps up to 250-300kHz if using smaller IGBTs.

DRSSTCs generally 30-32 AWG.

With spark gap coils, you can make larger coils and probably get away with 22-30 AWG - again depending on frequency you want. Download a calculator to determine what resonant frequency you require for your design.

My paper here: How I Build mY tesla Coils is a good introduction into how to use calculators to determine coil specs, etc...

Link2

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teslarevolution
Wed Jul 03 2013, 04:47PM
teslarevolution Registered Member #16903 Joined: Thu May 09 2013, 08:00PM
Location: Sumter, SC
Posts: 23
OK thanks that helped a lot
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