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I built my terry filter on a piece of lexan with 4 banana plugs in the
corners. The board then plugs into 4 banana jacks in my transformer box.
It's easy to tug it off, make additions or repairs and then plug it back on.
On 10/26/15 20:34, Matthew Sweeney wrote:
> On the Terry filter, I see these suggested:
>
> http://www.alliedelec.com/ohmite-l100j1k0e/70022726/#tab=specs
>
>
> But the specs say they are only good for 10VAC. I imagine the voltage seen
> across these resistors will be much much higher than that - or am I missing
> something?
>
> I found a few 200Watt 1KOHM ohmite resistors at ax-man for a few bucks a
> piece but they are shorter than the above linked model, and apparently
> rated at 1800V.
>
> I'll be working on the coil form first, and during that time also the terry
> filter. I don't intend to turn anything on until the filters are in place.
> I found a 20A EMI filter at ax-man for $3 I think that's a decent price.
>
> Thanks,
>
> Matt
>
>
> On Sun, Oct 25, 2015 at 4:09 AM, wt5y <wt5y@xxxxxxxxx> wrote:
>
>>
>>
>> I use a laminates and plastics 10" blade on my table saw for cutting HDPE,
>> would work for any cutting board. I found a one inch thick board of HDPE
>> Plastic I drilled the holes to fit 1/4" copper tubing then cut through them
>> with table saw to make them insulated supports for the primary coil. Got
>> it from sears, sure you can find same blades at home depot, lowes, harbor
>> freight, etc. It will have smaller teeth than a regular wood blade. I
>> have used the Temco brand magnet wire from Amazon/Ebay on both my
>> secondarys. The original was 26awg on 4" pvc. The latest being 20awg on a
>> 6" secondary form of pvc.
>>
>> I used the same caps in my MMC .15UF 2000VDC. but I used 16 In a string.
>> Started with 1 string. Now I have 4 strings for a total of 64 caps.
>> Started with 12kv 30ma. Then 12kv 30ma x 2. Ended up with 12kv 60ma x 3
>> for 10ma total.with 64 caps.
>>
>> Don't forget Terry filter.
>> John cooper
>>
>>
>> Sent from my Samsung GALAXY S5™, a Cricket 4G LTE smartphone
>>
>> -------- Original message --------
>> From: Matthew Sweeney <msweeney23@xxxxxxxxx>
>> Date: 10/24/2015 21:05 (GMT-06:00)
>> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
>> Subject: [TCML] Tesla Coil Magnet Wire
>>
>> Hi all, I'm gathering supplies for my new small Tesla coil (4" x 20"
>> winding) and have a few quick questions.
>>
>> I calculated to use 26AWG wire for this secondary, I've heard it is best to
>> use 22AWG or larger but I believe that is only for larger coils correct?
>>
>> I found some affordable wire on Amazon:
>>
>>
>> http://www.amazon.com/TEMCo-AWG-Copper-Magnet-Wire/dp/B00LV8YX7Q/ref=sr_1_19?s=lamps-light&ie=UTF8&qid=1445737908&sr=1-19&keywords=26awg+magnet+wire
>>
>> This is 26AWG Polyurethane with a Polyamide over-coat. Does anyone have
>> experience with this manufacturer (TEMCo) or have suggestions on a more
>> reliable source? I'm willing to pay more for better quality but within
>> reason of course this is just a small coil.
>>
>> I'm planning on using 13X0.15uf/2000V capacitors for about 10pf at 26KV
>> driven by a 12KV/30ma NST. Do you think that is sufficient voltage on the
>> MMC? I'll be using an adjustable PowerStat 20A power transformer so I can
>> run at lower voltages at first.
>>
>> I can add more capacitors (30 total) but then the capacitance drops too low
>> towards resonance and I don't want to destroy my NST =)
>>
>> I am still in pre-build stage so any suggestions would be very welcome.
>>
>> Oh also does anyone know the best way to cut cutting board for supports? I
>> figured a table saw is inappropriate I do have a small band-saw but I guess
>> I'd need a different blade for plastics vs wood?
>>
>> I'm trying to source some thin-walled 4" PVC but no luck so far except
>> special order for 20' lengths at menards - that won't fit in my car =)
>>
>> Thanks for any suggestions!
>>
>> Matt
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>> _______________________________________________
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>>
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