Deleted
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Post by Deleted on May 8, 2018 17:11:55 GMT
I'm after the resistance value of a resistor to put in parallel on the alternator D+ circuit.
My brother has a combined idiot light set up on his boat, it doesn't excite the alternator enough for the warning lamp to go out without a good blip of the throttle, he doesn't want to loose the idiot lights nor add an extra charge indicator lamp, a discrete resistor is the answer - the question is what value?!
Ta!
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Post by JohnV on May 8, 2018 18:53:51 GMT
I'm after the resistance value of a resistor to put in parallel on the alternator D+ circuit. My brother has a combined idiot light set up on his boat, it doesn't excite the alternator enough for the warning lamp to go out without a good blip of the throttle, he doesn't want to loose the idiot lights nor add an extra charge indicator lamp, a discrete resistor is the answer - the question is what value?! Ta! 47 ohm 5 watt if no lights at all, if idiot lights are LED's stick with that. if small filament lights try 100 ohm 2 watt. If you don't know the size of the idiot lights then buy some 220 ohm minimum 1 watt resistors and just add in parallel until problem solved. Sometimes though a lazy ind light is a product of the regulator ........ they are not made to a particularly high tolerance and if you get one right at the edge of spec it can give this result uk.rs-online.com/web/p/through-hole-fixed-resistors/2141850/uk.rs-online.com/web/p/panel-mount-fixed-resistors/0159922/ |
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Post by Deleted on May 8, 2018 18:58:52 GMT
I'm after the resistance value of a resistor to put in parallel on the alternator D+ circuit. My brother has a combined idiot light set up on his boat, it doesn't excite the alternator enough for the warning lamp to go out without a good blip of the throttle, he doesn't want to loose the idiot lights nor add an extra charge indicator lamp, a discrete resistor is the answer - the question is what value?! Ta! 47 ohm 5 watt if no lights at all, if idiot lights are LED's stick with that. if small filament lights try 100 ohm 2 watt. If you don't know the size of the idiot lights then buy some 220 ohm minimum 1 watt resistors and just add in parallel until problem solved. Sometimes though a lazy ind light is a product of the regulator ........ they are not made to a particularly high tolerance and if you get one right at the edge of spec it can give this result uk.rs-online.com/web/p/through-hole-fixed-resistors/2141850/uk.rs-online.com/web/p/panel-mount-fixed-resistors/0159922/Thanks John, that's ideal, I'll send him a link to this thread so he can sort it out, it's near Norwich I'm buggered if I'm going to go and do it for him  🍻🚢🔨👍 |
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Post by mouse on May 8, 2018 20:37:22 GMT
They tell us Norwich is a fine City. But I am in silly Suffolk so what would I know!
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Post by phil70 on May 11, 2018 23:16:35 GMT
An easy way to prevent trawling through CWDF is to wear boxing gloves. Also works to prevent other things
Phil
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Post by naughtyfox on May 12, 2018 15:11:29 GMT
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🍻🚢🔨👍
