Re: [TCML] The Practical construction of VTTCs

[Steve Ward <steve.ward@xxxxxxxxx>]

What do you expect to gain from filling your secondary with oil?

Steve

On Sat, Jul 14, 2012 at 5:06 PM, Neon Tesla <neontesla@xxxxxxxxx> wrote:
>            Yes I think paralleling MOTs is best now that you
> mention it, since I can't find hide nor hair of the shunts on
> my MOTs. I also want to try out an oil filled secondary to
> see how well it works before implementing it on a 12"
> coil.
>
>            Thanks
>
> On Sat, Jul 14, 2012 at 10:16 AM, Futuret <futuret@xxxxxxx> wrote:
>
>> Hello Neon,
>>
>> VTTC's are not very critical or complex.  The schematic you
>> referenced should work OK.  The listed values are probably
>> sufficient for use with two MOT's.  I often use a single large
>> MOT with level shifter (doubler) which gives 4kV output to the
>> tubes.  However the 572B's can be unhappy with such high
>> voltage and can be destroyed.
>>
>> The circuit itself will limit the current.  No need to use any
>> ballast.  No need for an oil filled secondary unless you
>> just want too anyway.  In fact you can obtain better results
>> by removing the shunts from the MOT (depending on the MOT,
>> this can be hard to do without ruining the MOT... so using
>> two MOT's in parallel as you suggest may be the best bet).
>>
>>  http://futuret.110mb.com   (website seems to be down now).
>>
>> Cheers,
>> John
>>
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: Neon Tesla <neontesla@xxxxxxxxx>
>> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
>> Sent: Sat, Jul 14, 2012 1:01 pm
>> Subject: [TCML] The Practical construction of VTTCs
>>
>>
>>             I recently purchased a matched set of 572B
>> tubes for a 3" VTTC and now I realized that there are
>> not nearly as many pages on the practical
>> construction of VTTCs so now i'm stuck. I was planing
>> to use both tubes and parallel two MOTs, then use an
>> oil filled secondary. I know the basics of a VTTC but
>> I have many questions.
>>
>>             Firstly I wonder if
>> this<
>> http://www.instructables.com/files/orig/FO0/K0NC/G3TDVWJB/FO0K0NCG3TDVWJB.jpg
>> >
>> schematics
>> values would
>> need to be upped to handle two MOTs? Second I was
>> wondering if the MOTs would need a ballast or rather
>> the tubes would draw the required current and not
>> pull too much current. Any help is greatly appreciated,
>>
>>             Thanks!
>>
>>
>> --
>> Don't lower your expectations, raise the voltage !
>> _______________________________________________
>> Tesla mailing list
>> Tesla@xxxxxxxxxx
>> http://www.pupman.com/mailman/listinfo/tesla
>>
>>
>> _______________________________________________
>> Tesla mailing list
>> Tesla@xxxxxxxxxx
>> http://www.pupman.com/mailman/listinfo/tesla
>>
>
>
>
> --
> *Don't lower your expectations, raise the voltage !*
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla