| Author |
Message |
Watson A.Name - \"Watt Su
Guest
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 Posted:
Tue Feb 15, 2005 1:31 pm Post subject:
Re: What type of resistor do I need? |
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"Anthony Fremont" <spam@anywhere.com> wrote in message
news:nQeQd.58992$sr1.22845@fe2.texas.rr.com...
| Quote: |
"neverunwired@aol.com" <johnandhan@verizon.net> wrote in message
news:hHdQd.18773$uc.3031@trnddc05...
Also...
I tried a 10K Ohm, 1/2W, 5% resistor just for kicks...didn't work
either.
Would a lower Ohm rating be necessary? For 1/2W resistors they also
have:
680, 560, 330, 150, and 100 Ohms.
A 500 Ohm resistor would dissipate about .38W, so you need to keep
that
in mind. Any smaller on the resistor value and you really need to
look
at a 1W resistor or larger.
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0r two 1000 ohm half watt resistors in parallel to give 500 ohms. Or
two 220 ohm half watt resistors in series to give 440 ohms, 1 watt.
Etc., etc., etc., to add up to however much wattage and resistance that
you need. Just don't run the half watt resistor at a half watt, because
the heat tends to burn them up over a long time.
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Watson A.Name - \"Watt Su
Guest
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| Posted:
Tue Feb 15, 2005 1:56 pm Post subject:
Re: What type of resistor do I need? |
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"Henry Kolesnik" <kolesnik@sbcglobal.net> wrote in message
news:jJbQd.47176$iC4.29834@newssvr30.news.prodigy.com...
| Quote: | P=E*E/R therefor R=E*E/5=13*13/5=33 ohms so use something between 33
and
40 ohms, 5watts. It might be easier to get some sockets and bulbs and
use
them as the resistor making it easier to replace on burn out. 5 watts
is a
lot of energy to dissipate so make sure in either case you don't melt
something or start a fire.
|
I agree with the idea of using light blubs for the load. However the
high currents in the light bulb should not be necessary for a controller
to detect it as an okay filament. Try using some resistors that are
higher, like maybe 1000 ohms.
| Quote: | --
73
Hank WD5JFR
"John or Han" <johnandhan@verizon.net> wrote in message
news:fsbQd.21177$uc.13297@trnddc02...
I'm upgrading the tail lamps on my vehicle and one set of bulbs are
not
being used in the new configuration. However, these two bulbs were
monitored by the vehicle's bulb failure system.
I'd like to exchange the bulbs with two resistors (to trick the Bulb
Failure Module), but I'm not sure what kind to use.
They are 5 Watt bulbs.
Thanks
-John |
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Graham W
Guest
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| Posted:
Tue Feb 15, 2005 10:13 pm Post subject:
Re: What type of resistor do I need? |
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neverunwired@aol.com wrote:
| Quote: | Also...
I tried a 10K Ohm, 1/2W, 5% resistor just for kicks...didn't work
either. Would a lower Ohm rating be necessary? For 1/2W resistors
they also have: 680, 560, 330, 150, and 100 Ohms.
|
If you bought a packet of 1000 Ohm resistors, try two in parallel
to give you 500 Ohms and if that doesn't work try three (333 Ohms)
and four (250 Ohms). Twist the wires together to make sure that
every resistor is passing current.
It would be useful to put the original bulb across the ends of the
wires to verify that the module is working and can still tell that
the filament not broken.
--
Graham W http://www.gcw.org.uk/ PGM-FI page updated, Graphics Tutorial
WIMBORNE http://www.wessex-astro-society.freeserve.co.uk/ Wessex
Dorset UK Astro Society's Web pages, Info, Meeting Dates, Sites & Maps
Change 'news' to 'sewn' in my Reply address to avoid my spam filter.
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neverunwired@aol.com
Guest
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| Posted:
Wed Feb 16, 2005 6:10 am Post subject:
Re: What type of resistor do I need? |
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I've tried many of the combinations suggested by everyone, but I'm afraid
I've been unable to fool the BFM with a resistor(s). I was, however, able to
wire and conceal a small 'dim' 5W bulb into the circuit...looks and works
fine. Thanks for everyone's expertise!
-John
"John or Han" <johnandhan@verizon.net> wrote in message
news:fsbQd.21177$uc.13297@trnddc02...
| Quote: | I'm upgrading the tail lamps on my vehicle and one set of bulbs are not
being used in the new configuration. However, these two bulbs were
monitored by the vehicle's bulb failure system.
I'd like to exchange the bulbs with two resistors (to trick the Bulb
Failure Module), but I'm not sure what kind to use.
They are 5 Watt bulbs.
Thanks
-John
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Guest
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| Posted:
Thu Feb 17, 2005 10:19 pm Post subject:
Re: What type of resistor do I need? |
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neverunwired@aol.com wrote:
| Quote: | I've tried many of the combinations suggested by everyone, but I'm afraid
I've been unable to fool the BFM with a resistor(s). I was, however, able to
wire and conceal a small 'dim' 5W bulb into the circuit...looks and works
fine. Thanks for everyone's expertise!
-John
"John or Han" <johnandhan@verizon.net> wrote in message
news:fsbQd.21177$uc.13297@trnddc02...
I'm upgrading the tail lamps on my vehicle and one set of bulbs are not
being used in the new configuration. However, these two bulbs were
monitored by the vehicle's bulb failure system.
I'd like to exchange the bulbs with two resistors (to trick the Bulb
Failure Module), but I'm not sure what kind to use.
They are 5 Watt bulbs.
Thanks
-John
As an alternative, try two 50 ohm, 10 watt |
resistors in parallel. Radio Shack will
happily sell you them at 2 for $1.79.
Ed |
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Guest
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| Posted:
Thu Feb 17, 2005 10:41 pm Post subject:
Re: What type of resistor do I need? |
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ehsjr@bellatlantic.net wrote:
| Quote: | As an alternative, try two 50 ohm, 10 watt
resistors in parallel. Radio Shack will
happily sell you them at 2 for $1.79.
|
Yeah, what Ed said. Just make sure you mount them where they have
enough airflow to cool them (don't wrap them in tape and secure them
to a wiring harness).
I'd try and see if one works, but two in parallel is a definite fix. |
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