Re: [TCML] New high voltage source for VTTC

[Liviu Vasiliu <teslina@xxxxxxxxx>]

http://www.tubes.ru/techinfo/Broadcast/gu-5b.html

teslina
>
>


--- On Tue, 2/10/09, DC Cox <resonance@xxxxxxxxxxxx> wrote:

> From: DC Cox <resonance@xxxxxxxxxxxx>
> Subject: Re: [TCML] New high voltage source for VTTC
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Date: Tuesday, February 10, 2009, 12:38 AM
> What are the power supply specs for the GU5B?   Higher power
> than an 833C or
> ???
> 
> Dr. Resonance
> 
> 
> 
> 
> 
> On Sun, Feb 8, 2009 at 9:55 PM, alfred
> <alfred@xxxxxxxxx> wrote:
> 
> > Hi list
> >
> > I am slowly building a new VTTC with a big russian
> tube (GU5B) and I needed
> > a more powerful high voltage transformer to power it.
> Unfortunately I have
> > only small MOTs with different outputs, so it would be
> hard to simply
> > parallel them.
> >
> > So, I designed a powersource, using the MOTs I have in
> hand. The doubler
> > cap will charge at the higher voltage from the biggest
> MOT and the currents
> > will add to another through some unidirectional paths
> (using HV diodes). I
> > tryed the new source with one of my VTTCs and the
> results seem to be
> > satisfactory.
> >
> > The design discussion, drawings, setup pics and movies
> are published here:
> >
> >
> http://4hv.org/e107_plugins/forum/forum_viewtopic.php?60496
> >
> > The suggestion from the forum guys was simply parallel
> the MOTs, because
> > the power dissipation from the leaking current would
> be too small to
> > consider, but I was worry to not loose power (the
> output difference from the
> > MOT secondaries was 92 V at full mains voltage = 220
> V). Another variant was
> > to take off the shunts and modify the number of turns
> in the MOT primaries,
> > but I was too afraid to not damage the xfrms (it is
> hard to get them here).
> > So, maibe I have chosen the complicated way, but still
> it seems to work.
> >
> > teslina
> >
> >
> >
> >
> >
> >
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