[TR] Pertronix

[George Richardson]

I'm using a Crane unit in my TR3, so can't comment on the Pertronix in 
particular, but I've had an oscilloscope on mine and found no effect 
from anything. Since the Crane has the switching unit outside the 
distributor, I would expect it to be more affected than the Pertronix, 
which is all integrated into the distributor.

On top of that, the field generated by the wires in the ignition circuit 
would be insignificant.

Your old radios were analog and amplified and stray signals the tubes 
picked up. The electronic ignition system is essentially digital. The 
sensor is either on or off, and the output is as well.

George Richardson
Key Men - Keys for Classics
www.key-men.com

1957 Triumph TR3
1961 Jaguar Mark 2
1975 Triumph TR6
1997 Land Rover Discovery

On 10/11/2014 9:21 PM, terryrs at comcast.net wrote:
> I have been--and continue to be--a big fan of electronic ignition for my TR3A.  No gradual degrading of points, no resetting or filing, and so on.
> Just had my boat distributor rebuilt by Advanced Distributers in MN (NFI and all that).  They did a great job on a Triumph dizzy too.
> As I was talking to Jeff there, he mentioned how his experience with Pertronix has led him to believe that the RFI interference of the magnetic fields of the wires affects the Pertronix and can cause a reduction in power.  One particular empiric test he ran was with a new rebuilt high end engine that found a 30 horsepower increase switching to points after several disappointing tests with Pertronix.
> I'm not inclined to disbelieve it, necessarily.  In the navy in the late 60's, I worked on WWII radios in very old sub hunt and seek prop planes.  They had odd interferences like inter-electrode capacitance issues.
> So...opening it up to the List.  I'm way to removed from electronics these days to profess expertise.  Jeff thought people would say he's crazy.
> Thoughts?
>
> Terry Smith, '59 TR3A  TS 58667
> New Hampshire, where inter-snowflake capacitance is a very real issue come on to January....
>
> ** triumphs at autox.team.net **
>
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