[SEL] replacement ignition designs

[Elden DuRand]

Steve:

That is an interesting website.  I do think that for our purposes (low speed engines without battery recharging means), the HEI modules are overkill.

I designed and used to sell solid-state ignition systems for old engines.  It used either a Hall-Effect transistor and magnet for the pickup or a simple set of contacts.  You could select the triggering mode between when the points opened and when they closed.  On the last model, there was even an RPM limiter.  The unit was totally self contained, including the battery, charger and coil.

My system would run an engine at 1,000 RPM for nearly 100 hours between chargings.

Unfortunately, they didn't sell well and I got out of the business before I got too far into the hole.  I still use my ignitions on all my engines and occasionally see one in use at shows.

As a service to the hobby, I -may- offer the schematic and parts list for a simplified version of this system if anyone's interested.  I also still have a supply of the bare circuit boards for the full-featured version.

Take care - Elden
http://www.oldengine.org/members/durand 

> -----Original Message-----
> From: sel-bounces at lists.stationary-engine.com
> [mailto:sel-bounces at lists.stationary-engine.com]On
>  Behalf Of Steve W.
> Sent: Tuesday, January 06, 2009 11:32 PM
> To: ATIS LIST; Engine list
> Subject: [SEL] replacement ignition designs
> 
> 
> http://www.geocities.com/loudgpz/GPZheiModForPoints.html
> 
> Be sure to look at the preceding page as well. 
> Plans on there for many
> interesting ignition items...
> 
> -- 
> Steve W.