RE: vttc video....

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Cameron B. Prince" <cplists@xxxxxxxxxxxxxxxxx>


Hi John,

I am aware of the history of the controller as I gathered as much
information as I could about your work with the VTTC last year when I
started my work. I know I called the board with the dual 555's (or single
556) the Steve Ward controller in the previous post which didn't give homage
to its origin. I was merely indicating the source of the schematic I used to
build the board.

There is no doubt about the impact you and Dave Sharpe made on the VTTC art.

Thanks,
Cameron

> Cameron,
>
> My original staccato controller used TTL IC's.  These became
> subject to RF interference when the spark length went over 25"
> or so.  Next Dave Sharpe designed but did not build a
> 556 Timer based staccato circuit based on my TTL design.
> I modified Dave's design using (2) 555 timers, and got the
> board working.  Later I modified this design by adding a
> zero-crossing circuit based on some work that John Tebbs
> did for a triggered sync gap circuit.  The staccato circuit shown
> at Steve's website is this modified design in which I included
> the zero-crossing circuit.  Steve offered to put the design at
> his website since I was having trouble with my website at the
> time.  Steve re-drew the circuit because I had sent him
> a hand-drawn schematic.  Later there was a discussion on
> the list about which features might be useful, and Dan
> incorporated the extra pulse features into his staccato board
> circuit.  That's the history of staccato board development.
>
> John