[TCML] Secondary and Primary Assistance

[bartb]

Hi DC,

I have to ask the same as Scott. My 13" sonotube coil retained it's 
print (no problems). And the printing industry is a major part of my 
experience. Inks which are conductive are typically due to the 
technology needed for printing. But these are expensive inks and it 
makes no sense why those inks would be used on sonotube. Conductive inks 
are only needed due to the printing technology. Ink jet or laser 
printing, no. But when "toner" is used such as a Zerox printer, then 
conduction is certain as the toner must be conductive to magnetically 
adhere to the belt or cylinder used for ion deposition technologies (ion 
deposition technology is when conductive inks enter the picture).

It would surprise me if sonotube would use any type of ion deposition 
technology to simply implant logo data. This technology is far more 
expensive and thus it doesn't make sense from a dollar standpoint. 
However, I haven't performed any testing on the sonotube printing (I'm 
simply speculating from my experience in the printing industry).

Take care,
Bart

huil888 wrote:
> DC -
>
> In a discussion thread about using sonotubes as secondary coil forms, 
> you mentioned that "The print is conductive".
>
> Just out of curiosity, is this known to be true (i.e. you've measured 
> the conductivity of the ink printed on the form with a megohmmeter or 
> something similar), or is it an assumption?
>
> Regards,
> Scott Hanson
>
>
> ----- Original Message ----- From: "DC Cox" <resonance at wildblue.net>
> To: "Tesla Coil Mailing List" <tesla at pupman.com>
> Sent: Thursday, March 20, 2008 9:32 AM
> Subject: Re: [TCML] Secondary and Primary Assistance
>
>
>> This is also removed by peeling or sanding.  The print is conductive.
>>
>> Dr. Resonance
>>
>>
>>
>>
>> On 1/1/01, Neal Namowicz <neal at imagesbyneal.com> wrote:
>>>
>>>
>>> Dr. Res,
>>> I wanted to jump in on this one and ask; do you do anything re: the
>>> printing
>>> on the outside of the tube? I've heard people mention sanding off, 
>>> peeling
>>> off or whatever, the outside layer because of the black ink before
>>> sealing.
>>> Have you had any problems with that or do you just coat right over it?
>>> Thanks!
>>>
>>> Neal.
>>>
>>>
>>> ----- Original Message -----
>>> From: "DC Cox" <resonance at wildblue.net>
>>> To: "Tesla Coil Mailing List" <tesla at pupman.com>
>>> Sent: Wednesday, March 19, 2008 5:56 PM
>>> Subject: Re: [TCML] Secondary and Primary Assistance
>>>
>>>
>>> >A Sonotube (concrete form) works great for small and medium size
>>> coils.  I
>>> > have used it for up to 18 inch dia. secondaries.  Inexpensively
>>> available
>>> > from large contractor supply firms.
>>> >
>>> > You just peel off the upper layer on the inside of the coil which
>>> contains
>>> > the slightly conductive release agent.  Then coat with 3 separate 
>>> coats
>>> of
>>> > AC-43, both inside and outside.
>>> >
>>> > After that insert two acrylic baffles approx 4-6 inches up from each
>>> end.
>>> > Prevents any interior flashover.  Affix in place with GE Silicone II.
>>> >
>>> > Dr. Resonance
>>> >
>>>
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>>>
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