Re: Ignition coils

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


You could also use a 950 VAC 1-2 mA power xmfr with a full wave bridge.  Use
a 1-2 meg current limiting resistor in series with output to slowly charge
the energy cap.  Then the sideac breaks down and fires the cap into the
primary.  With 950 VAC output would be approx 1343 VDC rectified output.

Someone mentioned different sidacs.  What mfgr, part no., and rating were
they?

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, March 29, 2004 10:23 PM
Subject: Re: Ignition coils


 > Original poster: "Steve Zeitler" <zeitler-at-verizon-dot-net>
 >
 >
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Sunday, March 28, 2004 11:27 PM
 > Subject: Re: Ignition coils
 >
 >
 >  > Original poster: "john cooper" <tesla-at-tesla-coil-dot-com>
 >  >
 >  > For what it's worth, I built my first tc using an ignition coil but not
 >  > just any ignition coil, a high performance coil like one you'd put in a
 >  > race car, it was supposed to have a higher voltage output than a
'normal'
 >  > coil.  Could be something to think about.
 >  > jfc
 >  >
 >  >
 >  > ---------- Original Message ----------------------------------
 >  > From: "Tesla list" <tesla-at-pupman-dot-com>
 >  > Date:  Sun, 28 Mar 2004 19:18:08 -0700
 >  >
 >  >  >Original poster: Bob81818-at-aol-dot-com
 >  >  >
 >  >  >Hello list,
 >  >  >        This topic has probably came up before, but I was wondering
if
 >  >  >anyone has any suggestions, comments, or thoughts about running a
small
 > TC
 >  >  >on multiple ignition coils. I came across three identical coils from
a
 > GM
 >  >  >truck. They are made by Delco-Remy and the model number is 1875894,
if
 >  >  >anyone is familiar with those. Basically I am interested how to wire
 > them
 >  >  >up, if possible in a bipolar TC. Are they like small MOTs? Thank you
for
 >  >  >your time.
 >  >  >        Dan E.
 >  >  >
 >  >  >
 >  >  >
 > Just a quick tidbit on this
 > Ignition coil drivers and flyback drivers I've seen often use a 2N3055.
 > These don't work well... they're too slow and have a low breakdown V of
60v.
 > They don't live long.
 > I have had good luck using the "BUY69A" horizontal deflection transistor.
 > They're good for 10A and 1kv.
 > They are at mcmelectronics-dot-com for $4.10 ea. Power mosfets seem to be the
 > newer thing for this but I haven't tried them .
 >                                                         Steve Z
 >  >
 >  >
 >  >
 >  >
 >  >
 >
 >
 >