Re: flyback transformer HV question

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jonathan Peakall by way of Terry Fritz <teslalist-at-qwest-dot-net>" <jpeakall-at-madlabs.info>

Ryan,

Do you mean the arc will *strike* at 2-3cm or that you can *draw* it to
2-3cm? Striking at 2-3cm is good, but you should be able to draw it to
3-4cm. I have used regular clear light bulbs and got plenty of streamers
inside the bulb, even a big bulb.

Try using a two transistor circuit. Just as easy to make as the single
transistor circuit. Also, are you using your own primary winding, or the
original? I have a two transistor circuit and some other flyback information
on my site at: http://madlabs.info/index.php?x=flyback.jsp

Jonathan

www.madlabs.info

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, August 06, 2003 6:53 PM
Subject: flyback transformer HV question


 > Original poster: "Ryan Molecke by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <ryan-at-molecke-dot-com>
 >
 > Hi all,
 >
 >     I've been playing with some flyback transformers, and have succeeded
in
 > producing 1-2cm sparks from the HV output (the wire that had the suction
cup
 > on it). I can't seem to find the HV return wire on any of my transformers
 > (I'll build my own soon enough), but I can generate sparks to a grounded
 > wire.
 >
 > I'm using a simple, single transistor driving circuit on the transformer.
 > I'm trying to use this as a driver for a plasma globe. This HV lead does
not
 > seem to turn lightbulbs into plasma globes. I'm just putting the HV lead
 > onto the baseplate of the bulb (I've also tried tying the bulb "return" to
 > ground). I've tried various type of bulbs. A 40W clear bulb was allowing
 > arcs through the glass to a grounded wire, but no streamers inside.
 >
 > Does this indicate that my transformer has internal diode(s)? Am I hooking
 > up the bulb right? Anyone know?
 >
 > Thanks!
 > Ryan Molecke
 >
 >
 >