From: David Lesher
Subject: Re: (Avionics) How can this circuit produce an "inductive surge"?
Date: Fri, 27 Sep 2002 16:12:22 +0000 (UTC)
Organization: NRK Clinic for habitual NetNews Abusers - Beltway Annex
Reply-To: firstname.lastname@example.org (David Lesher)
NNTP-Posting-Date: Fri, 27 Sep 2002 16:12:22 +0000 (UTC)
"Dennis O'Connor" writes:
>Tens of millions of vehicles are on the roads every hour of the day and
>night... When is the last time you saw a vehicle with its electronics ruined
>due to alternator run away? (not heard about third hand from some guy -
>actually have laid your own eyes on) Given the hundreds of thousands of
>vehicles you have passed on the roads in your lifetime you would have had to
>personally seen them if they were statistically likely... You haven't...
>Old wives tales, never seem to die..
Well, a friend toasted his laptop but good by having it plugged in
while starting. Now, it was plugged into his PA24 and not his Miata,
but it's still dead.
When I did 2-way work; I fixed a number of roached-by-spikes radios.
None quite equalled the 100W RCA low-band (31mhz) unit.
All the butterfly output transistors had exploded into pieces.
Turns out the workers had jump-started the 28V tri-axle dump-truck
....with a large DC arc-welder.
As for load dumps; I worked on someone's car where the battery cable came
loose one night. It popped every lamp on the car that was on - headlights,
tail, interior, etc. Radio was already dead so that was not hurt. Ignition