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Re: Flyback HV terminals. Richard Hull speaks! (fwd)



Original poster: Steven Roys <sroys@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Sat, 10 Mar 2007 18:16:36 -0500
From: Richard Hull <rhull@xxxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Flyback HV terminals. Richard Hull speaks!  (fwd)

Sorry for the tardy response.  [And likewise sorry for the even tardier
forwarding of the response.  SRR]  Steve gave the website for the fusor
and
there is a full accounting going back to 1998 of my activities with fusion.
It has been a real trip and was a lot more challenging and required far more
reading, knowledge base and expanded skill set than did my 14 year long
adventure with Tesla coils.  It is true that all we do helps prepare us for
the next adventure.

In 2000, the TCBOR became the High Energy Amateur Science group here in
Richmond and we still meet monthly.  My Teslathons morphed smoothly into the
HEAS conference with all the same faces showing up, plus a few more.

Richard Hull


----- Original Message ----- 
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: "hvlist" <hvlist@xxxxxxxxxx>
Sent: Monday, March 05, 2007 8:17 PM
Subject: Re: Flyback HV terminals. Richard Hull speaks! (fwd)


> Original poster: Steven Roys <sroys@xxxxxxxxxx>
>
>
>
> ---------- Forwarded message ----------
> Date: Tue, 6 Mar 2007 02:03:23 +0900
> From: Peter Terren <pterren@xxxxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: Flyback HV terminals. Richard Hull speaks!
>
> Richard Hull,
> (Tesla coil Master, for you young blokes)
> Welcome back to HV.
> I well recall your Nemesis coil and also, I think that is your coil in the
> current Guinness book of records as a photographic example of an
impressive
> coil
> Last I heard (years ago), you were happily fusoring away. Could we have a
> little insight into your travels in those years?
>
> Tesladownunder
>
> [Peter, and anyone else so inclined - feel free to check out www.fusor.net
> to learn about the more recent adventures of Richard and the other members
> of the Neutron Club.  SRR]
>
> > ---------- Forwarded message ----------
> > Date: Sun, 4 Mar 2007 13:15:13 -0500
> > From: Richard Hull <rhull@xxxxxxxxxxxxxx>
> > To: High Voltage list <hvlist@xxxxxxxxxx>
> > Subject: Re: Flyback HV terminals (fwd)
> >
> > Modern flybacks have diodes in them and postive DC is the output on the
> > long
> > top wire, so no rectifier is needed.
> >
> > The primary connections and the return for the High voltage, (ground),
are
> > on those circular row of bottom pins and it is a crapshoot as to what is
> > what.  The base of the secondary (HV return) is best found by getting a
> > sine
> > wave oscillator connecting it to the hv lead through an LED.  Tune the
> > oscillator to about 10khz, then with the other lead of the oscillator
> > probe
> > the bottom pins with it until the LED lights.  This is the HV return or
> > bottom of the secondary and it is usually ground.
> >
> > The primary is a bit more difficult to find, but can be isolated through
> > trial and error as the remaining 4-6 pins on the base are usually
> > connected
> > as pairs of coils.  The highest ohmic resistance of the three or four
base
> > coils is most likely the primary.  All the other coils are low voltage
> > coils
> > for the picture tube filament and other low voltage supplies in the TV
and
> > can be ignored.
> >
> > Richard Hull
>
>
>