How ground is ground?

Randolph coughed up:

I think that artists /ought/ to be poor. I sooo had hopes for P2P until
the RIAA started filing lawsuits. I know that they cannot subpoena for
names based upon IP anylonger. But they still filed 1500 suits since this
january, and they call them "john doe" suits against the holders of a
particular IP. Beats me how the heck they're doing it.

 

ive got a 10 disc blaupunkt system. no big deal for me to go through my
20+ gigs of mp3s and make 10 new compilation discs a couple times a year.

they do make an ipod cradle adapter for the blaupunkt systems that plugs
into the CD changer port. dock the ipod, it charges, and you use the
stereo controls to navigate through the songs.

 

ive got a 10 disc blaupunkt system. no big deal for me to go through my
20+ gigs of mp3s and make 10 new compilation discs a couple times a year.

they do make an ipod cradle adapter for the blaupunkt systems that plugs
into the CD changer port. dock the ipod, it charges, and you use the
stereo controls to navigate through the songs.

 

i use a program called "grabit" that retrieves mp3s from newsgroups. ive
downloaded a lot of stuff i never thought of searching for. if you can
set up a newsreader, you can set up grabit.

 

i use a program called "grabit" that retrieves mp3s from newsgroups. ive
downloaded a lot of stuff i never thought of searching for. if you can
set up a newsreader, you can set up grabit.

 

I added a simple audio adapter to my Honda. The widget plugs into the 14
pin port used for an external CD cahnger. Now "CD Changer Disc 1, track
1" is an external mp3 player. PIE HON98-AUX Auxiliary Input Converter
<http://www.logjamelectronics.com/piehon98aux.html> $49.95

For iPod, there are more expensive gadgets that interface control, but I
just wanted the audio.
http://www.logjamelectronics.com/ipodproducts.html

 

I added a simple audio adapter to my Honda. The widget plugs into the 14
pin port used for an external CD cahnger. Now "CD Changer Disc 1, track
1" is an external mp3 player. PIE HON98-AUX Auxiliary Input Converter
<http://www.logjamelectronics.com/piehon98aux.html> $49.95

For iPod, there are more expensive gadgets that interface control, but I
just wanted the audio.
http://www.logjamelectronics.com/ipodproducts.html

 

With a caveat - things like motors and light bulbs don't obey nicely. Motors
are an exception because they really are AC inside, one way or another.
Usually it is commutators that make AC out of the DC, and the winding
inductance is what limits the current. Light bulbs are positive temperature
coefficient, and draw less current when lit than you would calculate from an
ohmmeter reading.

Mike

 

With a caveat - things like motors and light bulbs don't obey nicely. Motors
are an exception because they really are AC inside, one way or another.
Usually it is commutators that make AC out of the DC, and the winding
inductance is what limits the current. Light bulbs are positive temperature
coefficient, and draw less current when lit than you would calculate from an
ohmmeter reading.

Mike

 

If you find a wire or connection that is always on be careful that
there is not a fuse or relay contact ahead of it. A fuse or relay
contact will Ohm out at 0 Ohms.

I looked at my '01 Honda and looked for a ground point. There were 4
black wires on the screw. I suggest you buy a small package of black
wire at Radio Shack, or wherever, install a crimp connector on the end
of the wire so now you have 5 wires at the ground point and it looks
factory.

No! But do make sure the loads are wired in parallel.

When I am designing the Electrical Facilities for a building with GFI
Breakers, I worry about multiground paths but on a car, I wouldn't
worry about it.

Wire size, use #16 or #18, lower number is larger.

Modern cars are full of Integrated Circuits, Computers,etc. so be
carefull. Replacing one could cost big bucks.


If you are going to do a good job, use crimp connectors at the end of
the wire. never twist two wires together and never twist a wire around
a screw.

 

If you find a wire or connection that is always on be careful that
there is not a fuse or relay contact ahead of it. A fuse or relay
contact will Ohm out at 0 Ohms.

I looked at my '01 Honda and looked for a ground point. There were 4
black wires on the screw. I suggest you buy a small package of black
wire at Radio Shack, or wherever, install a crimp connector on the end
of the wire so now you have 5 wires at the ground point and it looks
factory.

No! But do make sure the loads are wired in parallel.

When I am designing the Electrical Facilities for a building with GFI
Breakers, I worry about multiground paths but on a car, I wouldn't
worry about it.

Wire size, use #16 or #18, lower number is larger.

Modern cars are full of Integrated Circuits, Computers,etc. so be
carefull. Replacing one could cost big bucks.


If you are going to do a good job, use crimp connectors at the end of
the wire. never twist two wires together and never twist a wire around
a screw.

 

Sometimes circuits "rest at ground" and "go hot" when activated.

 

Sometimes circuits "rest at ground" and "go hot" when activated.

 

Randolph coughed up:

....[rip]...

Just a quick question about this question of yours.

Even if I do manage to open up this @#$%ing dashboard and reuse the in-dash
cig. lighter, didn't we decide that using the ground wire to it was a bad
idea?

Isn't it possible that because there is something else on that circuit, that
there might be something that just doesn't like having current flow through
it with the ignition off (for example, when my charger is plugged in
overnight).




--
Iamamanofconstantsorrow,I'veseentroubleallmydays.Ibidfarewelltoold
Kentucky,TheplacewhereIwasbornandraised.ForsixlongyearsI'vebeenin
trouble,NopleasureshereonearthIfound.ForinthisworldI'mboundtoramble,
Ihavenofriendstohelpmenow....MaybeyourfriendsthinkI'mjustastrangerMyface,
you'llneverseenomore.ButthereisonepromisethatisgivenI'llmeetyouonGod's
goldenshore.

 

Randolph coughed up:

....[rip]...

Just a quick question about this question of yours.

Even if I do manage to open up this @#$%ing dashboard and reuse the in-dash
cig. lighter, didn't we decide that using the ground wire to it was a bad
idea?

Isn't it possible that because there is something else on that circuit, that
there might be something that just doesn't like having current flow through
it with the ignition off (for example, when my charger is plugged in
overnight).




--
Iamamanofconstantsorrow,I'veseentroubleallmydays.Ibidfarewelltoold
Kentucky,TheplacewhereIwasbornandraised.ForsixlongyearsI'vebeenin
trouble,NopleasureshereonearthIfound.ForinthisworldI'mboundtoramble,
Ihavenofriendstohelpmenow....MaybeyourfriendsthinkI'mjustastrangerMyface,
you'llneverseenomore.ButthereisonepromisethatisgivenI'llmeetyouonGod's
goldenshore.

 

Not a problem, the lighter socket ground is a confirmed ground. Current
in this ground lead will not flow *through* anything else in the
circuit. If you are pulling high currents from the lighter socket, there
will be some voltage drop along the ground lead. Other devices using the
same ground wire will have their ground potential elevated ever so
slightly, but this is of no consequence. Also, the wiring to the lighter
socket is designed to handle large currents. Odds are the ground lead to
the lighter socket is shared only with the ash tray light.

 

Not a problem, the lighter socket ground is a confirmed ground. Current
in this ground lead will not flow *through* anything else in the
circuit. If you are pulling high currents from the lighter socket, there
will be some voltage drop along the ground lead. Other devices using the
same ground wire will have their ground potential elevated ever so
slightly, but this is of no consequence. Also, the wiring to the lighter
socket is designed to handle large currents. Odds are the ground lead to
the lighter socket is shared only with the ash tray light.