off road lighting
#91
Guest
Posts: n/a
Re: off road lighting
Depends on which way you aim the diode. Of course you could
always use a high power zener.
Approximately 10/25/03 16:21, Jerry Bransford uttered for posterity:
> What would a diode do in a DC circuit Dave? :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> KC6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Dave Milne" <jeep@_nospam_milne.info> wrote in message
> news:PyDmb.1675$hC4.16644299@news-text.cableinet.net...
>> I would hate to lie under a broken truck staring at a landing light ! I
>> guess you could add a diode.
>>
>> --
>> Dave Milne, Scotland
>> '99 TJ 4.0 Sahara
>>
>> "Lon Stowell" <LonDot.Stowell@ComcastPeriod.Net> wrote in message
>> news:7aDmb.26895$e01.57365@attbi_s02...
>> : Approximately 10/25/03 14:50, Dave Milne uttered for posterity:
>> :
>> : > What voltage do aircraft lights use out of interest ? I bet it's
> high...
>> :
>> : Dim memory is 24 volt, with 300-400 watts being a typical landing
>> : bulb. Honestly not a good offroad light, too narrow a beam.
>> :
>> : --
>> : My governor can kick your governor's ***
>> :
>>
>>
>
>
--
My governor can kick your governor's ***
always use a high power zener.
Approximately 10/25/03 16:21, Jerry Bransford uttered for posterity:
> What would a diode do in a DC circuit Dave? :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> KC6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Dave Milne" <jeep@_nospam_milne.info> wrote in message
> news:PyDmb.1675$hC4.16644299@news-text.cableinet.net...
>> I would hate to lie under a broken truck staring at a landing light ! I
>> guess you could add a diode.
>>
>> --
>> Dave Milne, Scotland
>> '99 TJ 4.0 Sahara
>>
>> "Lon Stowell" <LonDot.Stowell@ComcastPeriod.Net> wrote in message
>> news:7aDmb.26895$e01.57365@attbi_s02...
>> : Approximately 10/25/03 14:50, Dave Milne uttered for posterity:
>> :
>> : > What voltage do aircraft lights use out of interest ? I bet it's
> high...
>> :
>> : Dim memory is 24 volt, with 300-400 watts being a typical landing
>> : bulb. Honestly not a good offroad light, too narrow a beam.
>> :
>> : --
>> : My governor can kick your governor's ***
>> :
>>
>>
>
>
--
My governor can kick your governor's ***
#92
Guest
Posts: n/a
Re: off road lighting
Dave Milne did pass the time by typing:
> brain fade .. meant variable resistor !
It would take a real large resistor and probably
frag fairly quickly. Plus you would use up a lot of
power in heat.
The only good way to dim a high current DC lamp is with
a current regulator. (current switching/pulsing)
like
http://www.e-insite.net/ednmag/archi...97/22di_04.htm
Or a similar circuit.
--
DougW
> brain fade .. meant variable resistor !
It would take a real large resistor and probably
frag fairly quickly. Plus you would use up a lot of
power in heat.
The only good way to dim a high current DC lamp is with
a current regulator. (current switching/pulsing)
like
http://www.e-insite.net/ednmag/archi...97/22di_04.htm
Or a similar circuit.
--
DougW
#93
Guest
Posts: n/a
Re: off road lighting
Dave Milne did pass the time by typing:
> brain fade .. meant variable resistor !
It would take a real large resistor and probably
frag fairly quickly. Plus you would use up a lot of
power in heat.
The only good way to dim a high current DC lamp is with
a current regulator. (current switching/pulsing)
like
http://www.e-insite.net/ednmag/archi...97/22di_04.htm
Or a similar circuit.
--
DougW
> brain fade .. meant variable resistor !
It would take a real large resistor and probably
frag fairly quickly. Plus you would use up a lot of
power in heat.
The only good way to dim a high current DC lamp is with
a current regulator. (current switching/pulsing)
like
http://www.e-insite.net/ednmag/archi...97/22di_04.htm
Or a similar circuit.
--
DougW
#94
Guest
Posts: n/a
Re: off road lighting
Dave Milne did pass the time by typing:
> brain fade .. meant variable resistor !
It would take a real large resistor and probably
frag fairly quickly. Plus you would use up a lot of
power in heat.
The only good way to dim a high current DC lamp is with
a current regulator. (current switching/pulsing)
like
http://www.e-insite.net/ednmag/archi...97/22di_04.htm
Or a similar circuit.
--
DougW
> brain fade .. meant variable resistor !
It would take a real large resistor and probably
frag fairly quickly. Plus you would use up a lot of
power in heat.
The only good way to dim a high current DC lamp is with
a current regulator. (current switching/pulsing)
like
http://www.e-insite.net/ednmag/archi...97/22di_04.htm
Or a similar circuit.
--
DougW
#95
Guest
Posts: n/a
Re: off road lighting
"Lon Stowell" wrote ...
> Dim memory is 24 volt, with 300-400 watts being a typical landing
> bulb. Honestly not a good offroad light, too narrow a beam.
Depends upon the aircraft... My aircraft has a 14V electrical system, but
some aircraft have 28V ones... The airliners would be the ones with the 28V
lamps with higher wattage... I'm thinking that my landing light is either
100 or 150 watts... You're right on the narrowness of the beam (at least on
my landing light)... On some of the airports that are not well lit, it is
quite difficult to find the turnoff for the taxiway... I usually keep a
Q-beam type light with me and once I've slowed some, I slide the canopy
back, plug the Q-beam type light in the lighter port, and shine it off to
the side of the runway a couple hundred feet in front of my aircraft... It
also makes a good backup for when the landing light burns out and you have
to land without a light... Don't use it for landing, I use it to see the
taxiway after I have landed...
> Dim memory is 24 volt, with 300-400 watts being a typical landing
> bulb. Honestly not a good offroad light, too narrow a beam.
Depends upon the aircraft... My aircraft has a 14V electrical system, but
some aircraft have 28V ones... The airliners would be the ones with the 28V
lamps with higher wattage... I'm thinking that my landing light is either
100 or 150 watts... You're right on the narrowness of the beam (at least on
my landing light)... On some of the airports that are not well lit, it is
quite difficult to find the turnoff for the taxiway... I usually keep a
Q-beam type light with me and once I've slowed some, I slide the canopy
back, plug the Q-beam type light in the lighter port, and shine it off to
the side of the runway a couple hundred feet in front of my aircraft... It
also makes a good backup for when the landing light burns out and you have
to land without a light... Don't use it for landing, I use it to see the
taxiway after I have landed...
#96
Guest
Posts: n/a
Re: off road lighting
"Lon Stowell" wrote ...
> Dim memory is 24 volt, with 300-400 watts being a typical landing
> bulb. Honestly not a good offroad light, too narrow a beam.
Depends upon the aircraft... My aircraft has a 14V electrical system, but
some aircraft have 28V ones... The airliners would be the ones with the 28V
lamps with higher wattage... I'm thinking that my landing light is either
100 or 150 watts... You're right on the narrowness of the beam (at least on
my landing light)... On some of the airports that are not well lit, it is
quite difficult to find the turnoff for the taxiway... I usually keep a
Q-beam type light with me and once I've slowed some, I slide the canopy
back, plug the Q-beam type light in the lighter port, and shine it off to
the side of the runway a couple hundred feet in front of my aircraft... It
also makes a good backup for when the landing light burns out and you have
to land without a light... Don't use it for landing, I use it to see the
taxiway after I have landed...
> Dim memory is 24 volt, with 300-400 watts being a typical landing
> bulb. Honestly not a good offroad light, too narrow a beam.
Depends upon the aircraft... My aircraft has a 14V electrical system, but
some aircraft have 28V ones... The airliners would be the ones with the 28V
lamps with higher wattage... I'm thinking that my landing light is either
100 or 150 watts... You're right on the narrowness of the beam (at least on
my landing light)... On some of the airports that are not well lit, it is
quite difficult to find the turnoff for the taxiway... I usually keep a
Q-beam type light with me and once I've slowed some, I slide the canopy
back, plug the Q-beam type light in the lighter port, and shine it off to
the side of the runway a couple hundred feet in front of my aircraft... It
also makes a good backup for when the landing light burns out and you have
to land without a light... Don't use it for landing, I use it to see the
taxiway after I have landed...
#97
Guest
Posts: n/a
Re: off road lighting
"Lon Stowell" wrote ...
> Dim memory is 24 volt, with 300-400 watts being a typical landing
> bulb. Honestly not a good offroad light, too narrow a beam.
Depends upon the aircraft... My aircraft has a 14V electrical system, but
some aircraft have 28V ones... The airliners would be the ones with the 28V
lamps with higher wattage... I'm thinking that my landing light is either
100 or 150 watts... You're right on the narrowness of the beam (at least on
my landing light)... On some of the airports that are not well lit, it is
quite difficult to find the turnoff for the taxiway... I usually keep a
Q-beam type light with me and once I've slowed some, I slide the canopy
back, plug the Q-beam type light in the lighter port, and shine it off to
the side of the runway a couple hundred feet in front of my aircraft... It
also makes a good backup for when the landing light burns out and you have
to land without a light... Don't use it for landing, I use it to see the
taxiway after I have landed...
> Dim memory is 24 volt, with 300-400 watts being a typical landing
> bulb. Honestly not a good offroad light, too narrow a beam.
Depends upon the aircraft... My aircraft has a 14V electrical system, but
some aircraft have 28V ones... The airliners would be the ones with the 28V
lamps with higher wattage... I'm thinking that my landing light is either
100 or 150 watts... You're right on the narrowness of the beam (at least on
my landing light)... On some of the airports that are not well lit, it is
quite difficult to find the turnoff for the taxiway... I usually keep a
Q-beam type light with me and once I've slowed some, I slide the canopy
back, plug the Q-beam type light in the lighter port, and shine it off to
the side of the runway a couple hundred feet in front of my aircraft... It
also makes a good backup for when the landing light burns out and you have
to land without a light... Don't use it for landing, I use it to see the
taxiway after I have landed...
#98
Guest
Posts: n/a
Re: off road lighting
keep it from leaking backwards. ;-)
--
Jim
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:JzDmb.114498$gv5.106803@fed1read05...
> What would a diode do in a DC circuit Dave? :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> KC6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Dave Milne" <jeep@_nospam_milne.info> wrote in message
> news:PyDmb.1675$hC4.16644299@news-text.cableinet.net...
> > I would hate to lie under a broken truck staring at a landing light ! I
> > guess you could add a diode.
> >
> > --
> > Dave Milne, Scotland
> > '99 TJ 4.0 Sahara
> >
> > "Lon Stowell" <LonDot.Stowell@ComcastPeriod.Net> wrote in message
> > news:7aDmb.26895$e01.57365@attbi_s02...
> > : Approximately 10/25/03 14:50, Dave Milne uttered for posterity:
> > :
> > : > What voltage do aircraft lights use out of interest ? I bet it's
> high...
> > :
> > : Dim memory is 24 volt, with 300-400 watts being a typical landing
> > : bulb. Honestly not a good offroad light, too narrow a beam.
> > :
> > : --
> > : My governor can kick your governor's ***
> > :
> >
> >
>
>
--
Jim
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:JzDmb.114498$gv5.106803@fed1read05...
> What would a diode do in a DC circuit Dave? :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> KC6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Dave Milne" <jeep@_nospam_milne.info> wrote in message
> news:PyDmb.1675$hC4.16644299@news-text.cableinet.net...
> > I would hate to lie under a broken truck staring at a landing light ! I
> > guess you could add a diode.
> >
> > --
> > Dave Milne, Scotland
> > '99 TJ 4.0 Sahara
> >
> > "Lon Stowell" <LonDot.Stowell@ComcastPeriod.Net> wrote in message
> > news:7aDmb.26895$e01.57365@attbi_s02...
> > : Approximately 10/25/03 14:50, Dave Milne uttered for posterity:
> > :
> > : > What voltage do aircraft lights use out of interest ? I bet it's
> high...
> > :
> > : Dim memory is 24 volt, with 300-400 watts being a typical landing
> > : bulb. Honestly not a good offroad light, too narrow a beam.
> > :
> > : --
> > : My governor can kick your governor's ***
> > :
> >
> >
>
>
#99
Guest
Posts: n/a
Re: off road lighting
keep it from leaking backwards. ;-)
--
Jim
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:JzDmb.114498$gv5.106803@fed1read05...
> What would a diode do in a DC circuit Dave? :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> KC6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Dave Milne" <jeep@_nospam_milne.info> wrote in message
> news:PyDmb.1675$hC4.16644299@news-text.cableinet.net...
> > I would hate to lie under a broken truck staring at a landing light ! I
> > guess you could add a diode.
> >
> > --
> > Dave Milne, Scotland
> > '99 TJ 4.0 Sahara
> >
> > "Lon Stowell" <LonDot.Stowell@ComcastPeriod.Net> wrote in message
> > news:7aDmb.26895$e01.57365@attbi_s02...
> > : Approximately 10/25/03 14:50, Dave Milne uttered for posterity:
> > :
> > : > What voltage do aircraft lights use out of interest ? I bet it's
> high...
> > :
> > : Dim memory is 24 volt, with 300-400 watts being a typical landing
> > : bulb. Honestly not a good offroad light, too narrow a beam.
> > :
> > : --
> > : My governor can kick your governor's ***
> > :
> >
> >
>
>
--
Jim
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:JzDmb.114498$gv5.106803@fed1read05...
> What would a diode do in a DC circuit Dave? :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> KC6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Dave Milne" <jeep@_nospam_milne.info> wrote in message
> news:PyDmb.1675$hC4.16644299@news-text.cableinet.net...
> > I would hate to lie under a broken truck staring at a landing light ! I
> > guess you could add a diode.
> >
> > --
> > Dave Milne, Scotland
> > '99 TJ 4.0 Sahara
> >
> > "Lon Stowell" <LonDot.Stowell@ComcastPeriod.Net> wrote in message
> > news:7aDmb.26895$e01.57365@attbi_s02...
> > : Approximately 10/25/03 14:50, Dave Milne uttered for posterity:
> > :
> > : > What voltage do aircraft lights use out of interest ? I bet it's
> high...
> > :
> > : Dim memory is 24 volt, with 300-400 watts being a typical landing
> > : bulb. Honestly not a good offroad light, too narrow a beam.
> > :
> > : --
> > : My governor can kick your governor's ***
> > :
> >
> >
>
>
#100
Guest
Posts: n/a
Re: off road lighting
keep it from leaking backwards. ;-)
--
Jim
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:JzDmb.114498$gv5.106803@fed1read05...
> What would a diode do in a DC circuit Dave? :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> KC6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Dave Milne" <jeep@_nospam_milne.info> wrote in message
> news:PyDmb.1675$hC4.16644299@news-text.cableinet.net...
> > I would hate to lie under a broken truck staring at a landing light ! I
> > guess you could add a diode.
> >
> > --
> > Dave Milne, Scotland
> > '99 TJ 4.0 Sahara
> >
> > "Lon Stowell" <LonDot.Stowell@ComcastPeriod.Net> wrote in message
> > news:7aDmb.26895$e01.57365@attbi_s02...
> > : Approximately 10/25/03 14:50, Dave Milne uttered for posterity:
> > :
> > : > What voltage do aircraft lights use out of interest ? I bet it's
> high...
> > :
> > : Dim memory is 24 volt, with 300-400 watts being a typical landing
> > : bulb. Honestly not a good offroad light, too narrow a beam.
> > :
> > : --
> > : My governor can kick your governor's ***
> > :
> >
> >
>
>
--
Jim
"Jerry Bransford" <jerrypb@mecox.net> wrote in message
news:JzDmb.114498$gv5.106803@fed1read05...
> What would a diode do in a DC circuit Dave? :)
>
> Jerry
> --
> Jerry Bransford
> To email, remove 'me' from my email address
> KC6TAY, PP-ASEL
> See the Geezer Jeep at
> http://members.***.net/jerrypb/
>
> "Dave Milne" <jeep@_nospam_milne.info> wrote in message
> news:PyDmb.1675$hC4.16644299@news-text.cableinet.net...
> > I would hate to lie under a broken truck staring at a landing light ! I
> > guess you could add a diode.
> >
> > --
> > Dave Milne, Scotland
> > '99 TJ 4.0 Sahara
> >
> > "Lon Stowell" <LonDot.Stowell@ComcastPeriod.Net> wrote in message
> > news:7aDmb.26895$e01.57365@attbi_s02...
> > : Approximately 10/25/03 14:50, Dave Milne uttered for posterity:
> > :
> > : > What voltage do aircraft lights use out of interest ? I bet it's
> high...
> > :
> > : Dim memory is 24 volt, with 300-400 watts being a typical landing
> > : bulb. Honestly not a good offroad light, too narrow a beam.
> > :
> > : --
> > : My governor can kick your governor's ***
> > :
> >
> >
>
>