Re: Magnifier 13 report (fwd)
---------- Forwarded message ----------
Date: Tue, 28 Apr 1998 08:31:25 +1200
From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Magnifier 13 report (fwd)
> From: richard hull [SMTP:rhull-at-richmond.infi-dot-net]
> Sent: Sunday, April 26, 1998 6:57 PM
> To: Tesla List
> Subject: Re: Magnifier 13 report (fwd)
> yeah, I know, I mentioned the above as the reason in my first and original
> post on Maggey 13, but a lot of folks are having trouble believing it. Some
> of our own people in the TCBOR pointed there fingers that tuning was taking
> place as the spark output diminished as I tuned out on the primary from 34uh
> to 80 uh. I had to explain that that was due to the increased surge
> impedance of the tank and not any frequency change. A few of our less
> informed people still didn't like the thought.
There is actually a solid piece of evidence about the mode of
operation buried in there. Any body who has run a conventional two
coil system knows that changing primary inductance by a factor of two
*eliminates* output, not just reduces it :)
> Alas, it is more like a
> radio transmitter and less like a Tesla coil. A great radiator though. I
> gotta back to back a pair of tubes and custom fire those babies.
> I just picked up a Hewlett Packard 214A pulse generator at a recent hamfest
> for $10.00 with manual. Nice big tube unit of about 50 lbs and rack
> mounted. It will extend the capabilities of the H2 firing a great deal!
> It has the proper 50 ohm output impedance and can have rep rates from 10hz
> up to 1mhz. Pulse duration, delay, and position are independently
> adjustable from nanoseconds to milliseconds. It can be remote triggered,
> gated, or single shot fired. Yields positive and negative pulses up to 100
> voilts in amplitude.
> Richard Hull, TCBOR
That sounds like a wonderful research tool. Nice find.