In article ,
Michael A. Terrell wrote:
I'd guess the Delco designers knew how crap their car electrics were.
Early Blaupunkt seemed to work just fine without.


Every crappy solid state Blaupunkt I worked on had similar
protection.

Not on the ones I've owned.

They were the lowest grade construction of any automotive
electronics that I ever had the misfortune to repair.

You're talking ****e.

I repaired over
1000 car radios when I was a teenager. Delco was one of the best, as
far as durability & ease of repair.

Can't be that good if you had to repair over 1000.

They were durable, because they were
better designed. Philco was the worst US design, followed by the
Japanese radios, then the European designs. I never saw anything from
Russia, but I've heard that they were even worse.


ignorance may be bliss, but it damages lots of equipment.

Sure it might if you're stupid enough to disconnect the battery with
the engine running.


So, you claim that batteries never fail, or battery lugs come loose?

It's not common, no. And the usual first symptom is the car won't start.

You've never seen an open fusible link? You are just a parts changer
who doesn't understand the intimate details of a design.

Heh heh. That from the one who thinks early Blaupunkt was badly made...

http://www.google.com/search?hl=en&rls=com.microsoft%3Aen-us%3AIE-SearchBox&rlz=1I7GGLD&q=automotive+electrical+load +dump

Results 1 - 10 of about 177,000 for automotive electrical load dump.
(0.30 seconds)

You seem very hung up about it. Is it the latest fad?


It's a bit like memory effect on Ni-Cads - it can happen but is very
very rare. Doesn't stop some 'engineers' saying it happens all the
time. And others believing them.


Its nothing like Ni-Cad 'Memory effect' which was reported in some
spacecraft that had the exact same charging cycle, over and over due to
their constant orbit. The effect was proven in the lab by duplicating
the charging cycles. By varying the charge cycles that doesn't occur.

Indeed. But plenty thought it could happened to their mobile phones, etc.

--
*With her marriage she got a new name and a dress.*

Dave Plowman London SW
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