Re: No Terry Filter

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Paul B. Brodie" <pbbrodie@xxxxxxxxxxxxx>

Ed,
Thanks. Yes, I would like a copy of the schematic, if you can put your 
hands on it or direct me to where it's located. Pics would be a nice bonus. 
Appreciate it.
Paul
Think Positive


----- Original Message -----
From: "Tesla list" <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx>
To: <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx>
Sent: Tuesday, May 03, 2005 1:35 PM
Subject: Re: No Terry Filter

> Original poster: Ed Phillips <<mailto:evp@xxxxxxxxxxx>evp@xxxxxxxxxxx>
>
> "Ed,
> Do you have a design for a resonant charging driver for ignition coils?
> I
> have been wanting to do this but I haven't seen any examples where
> someone
> else has done it. So far, I have run my coils with a dimmer and 2 MO
> caps
> in parallel (1.95 mF total) and with a 555 wired as an astable
> multivibrator running between approximately 200Hz and 1000Hz.  I'm
> probably
> crazy but what I had in mind is using a MOT with a voltage doubler
> driving
> a resonant charger and cap using either a spark gap or SIDACs to
> discharge
> the cap through the primary of the ignition coil. Peter Terren has an
> example of driving an ignition coil with a MOT and SIDACs on his site. I
> would appreciate any advice.
> Paul
> Think Positive"
>
> Answer is yes, but not running from such a high voltage source.  The
> thing runs from voltage-doubled 120 V power line or other 300 volt
> source, uses a series charging choke with "disconnect diode" to charge
> the capacitor to about 600 volts.  Produces 5 to 6 inch sparks from two
> GMHEI coils potted in oil, although that is an upper limit and picking a
> capacitor to give about 4 to 5 inches is safer for the transformers.
> The discharge switch is a quadrac running in self-oscillating mode.  I
> can send schematic and pictures if you're interested.  Can't remember if
> they are on hotstreamer or not.
>
> Ed
>
>