Re: OLTC update

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Brian by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ka1bbg-at-webryders-dot-net>

Next just for giggles, Terry is going to design a compact OLTC and send it
into outerspace on its own simulation!  Sounds like Great Ground Breaking
work, glad to see it worked!!! Awesome! cul Brian F

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, August 21, 2002 12:24 AM
Subject: OLTC update


> Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
>
> Hi All,
>
> As I write this the list server is still down.  Chip knows all about it,
so
> just a matter of time before he can "fix" it. ;-))
>
>
> Tonight, I hooked up my signal generator up to my low-Z amp to power the
> coil circuit for preliminary testing.  Something looked all messed up in
> the line side at first, till I went back to MicroSim.  I just got all
> confused about ground references and such.  No problem at all.  But it did
> make may heart beat faster for awhile :-))  I quickly grew tired of the
> "weenie" ten volt input voltage an got out the big variac. :-))
>
>
> It took a long time to verify the connections and hook up's for a
seriously
> unlimited current voltage source.  Things will explode now if I screw up
> :o))  But after an hour, I was sure that everything was safe and sound.
So
> I cranked it on!!  After spending three weeks starring at MicroSim models
> and thinking out zillions of details, I was stunned that it worked exactly
> like it was supposed to!!!!  Here are the primary current and charging
> current waveforms that MicroSim kept telling me I had to "make":
>
> http://hot-streamer-dot-com/temp/OLTC08-20-04.gif
>
> and here is how it actually turned out:-))
>
> http://hot-streamer-dot-com/temp/OLTC08-20-01.gif
>
>
> MicroSim predicted that the firing pulse delay would be about 115uS.
>
> http://hot-streamer-dot-com/temp/OLTC08-20-05.gif
>
> It was really 132uS.
>
> http://hot-streamer-dot-com/temp/OLTC08-20-02.gif
>
> Close enough ;-))  A trivial thing, as long as it works ;-))
>
>
> This is an important test that falls under the "cheap scope tricks"
> category.  I ran the thing and the scope overwrote the waveform 128 times
> with full peak detection and all the fancy stuff on to detect any
"glitches".
>
> http://hot-streamer-dot-com/temp/OLTC08-20-03.gif
>
> The signal are rock solid and clean :-))  I really really like the timing
> circuit!!!!!  Simple, cheap, and it seems to work 100%!!!  I should
explain
> how it works some time, but not tonight ;-))
>
> So All is going perfectly :o))  Time to think about the secondary...  It
> may incorporate a brand new tuning trick too whose time seems to have come
> of age :-)))
>
> Cheers,
>
> Terry
>
>
>
>
>
>