Re: [TCML] AC powered Ignition Coil Circuit

["resonance" <resonance@xxxxxxxxxxxx>]

Switch the quadrac to an alternistor which drives inductive loads better. 
Alternistors with 30 Amp ratings are available from Digi-Key Electronics.

Dr. Resonance



Subject: Re: [TCML] AC powered Ignition Coil Circuit


I built this circuit years ago and it works great. Uses a Quadrac but
otherwise drives a 12 volt ignition coil from AC. The circuit was designed
to create a lightning display in a standard 5" incandescent designer bulb
but could be used for other purposes as well.

http://www.uoguelph.ca/~antoon/circ/hv/l-bulb/l-bulb.html

Daniel Hess



"C. Sibley" <a37chevy@xxxxxxxxx>
Sent by: tesla-bounces@xxxxxxxxxx
11/20/2007 08:52 AM
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Re: [TCML] AC powered Ignition Coil Circuit






My memory was bad, and I recalled poorly.

The dimmer circuit was indeed the circuit I was thinking off - despite my
inaccurate description.

Curt.


----- Original Message ----
From: Hypatia's Protégé <hypatia@xxxxxxxxxxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
Sent: Monday, November 19, 2007 8:20:01 PM
Subject: Re: [TCML] AC powered Ignition Coil Circuit

Do please forgive the nit-picking, but since when are thyristors not
semiconductors??? ;)

With regards
Dan Sarandon
----- Original Message -----
From: Clive Hansen
To: Tesla Coil Mailing List
Sent: Sunday, November 18, 2007 7:51 PM
Subject: Re: [TCML] AC powered Ignition Coil Circuit


Hello,
   I recall seeing this one a while back:
http://www.geocities.com/capecanaveral/lab/5322/simplehv.gif
It is the only circuit for the ignition coil I know of which doesn't
use semiconductors. It seems like it would be very hard on the coil.

-Clive

On Nov 18, 2007 4:58 PM, C. Sibley <a37chevy@xxxxxxxxx> wrote:
> I seem to recall seeing a circuit on line where an automotive ignition
coil
was drive directly by AC to produce a near continous discharge across a
gap.  It
was a very simple circuit but can't remember the details. As I recall it
didn't
involve the use of semiconductors.
> Does anyone else remember seeing this circuit, and can you point me to
it's
location?
> Thanks,
>
> Curt.

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