RE: [TCML] SRSG question

["Phil Tuck" <phil@xxxxxxxxxxx>]

Hi,
I put a 5v mains AC voltage on the scopes second channel and display both.
You then see where the phase is in relation to the AC sine. When it is
actually running real HV, the spark advances as it 'jumps' to the
approaching electrode a bit anyway. But by doing it this way you can at
least see how many degrees your altering the phase by, and you can then
decide if you have enough movement of the phase at the outset, and the best
place to set the rotor initially to make use of the amount of shift that you
do have. John's circuit is a real time saver.

http://www.youtube.com/watch?v=Vd3tjmEk3aQ

You don't need a photo sensor as in the vid, as Teslalabour's method will
work as well.

Regards
Phil

www.hvtesla.com


-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Gary Lau
Sent: 16 November 2010 21:42
To: Tesla Coil Mailing List
Subject: Re: [TCML] SRSG question

When using Line-Sync on the scope, that works fine for verifying that the
motor is running synchronously, but it offers no guidance as to where the
phase should be set for optimal operation.

Regards, Gary Lau
MA, USA

On Tue, Nov 16, 2010 at 4:35 PM, Teslalabor <teslalabor@xxxxxxxxxxx> wrote:

> I prefer the method of replacing the electrodes by steel bolts, 
> winding some wire arround the stationary electrodes, put a small 
> neodymium magnet on it and use the scope to measure the timing. Works
great!
>
> Stefan
>
>
> ----- Original Message ----- From: "Gary Lau" <glau1024@xxxxxxxxx>
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Sent: Tuesday, November 16, 2010 10:31 PM
>
> Subject: Re: [TCML] SRSG question
>
>
>  I cannot over-emphasize how important being able to use the
>> Freau-controller
>> to adjust the phase in real time is.  The difference in performance 
>> with only slight phase variations is huge.  If I had to adjust the 
>> phase blindly through trial and error, I'd have given up long before 
>> achieving success.
>> There is no way to use a timing light to determine the optimal phase 
>> setting.  It can only be determined experimentally.
>>
>> Regards, Gary Lau
>> MA, USA
>>
>>>
>>>>
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