I think you misunderstood the intent of my post.. it was not to discount your discovery.. but rather just the expression of an opinion. It's been my exp that lamps that are 'dimmed' do not last as long as lamps run at intended brightness. I have no empirical data to back this up.. just observation. Every dash lamp I've ever replaced was one that was ont he dash dimming circuit. I've only had to replace a few 194 marker lamps in the same time period where i have seenmultiple dash / dimmed lamp failures. I would tend to agree with you on the vibration / harsh env issue. oNE THING ONT HE EXCITER LAMP THOUGH.. IT'S UPTIME IS VERY SHORT, ASSUMING THE ALT WORKS. tHAT IS.. THE LAMP IS ONLY ON UNTIL THE ALTERNATOR STARTS CHARGING.. THEN CURRENT FLOW VIRTUALLY STOPS ( capslock.. darnit.. I hate this micro keyboard..) Anyway.. once the alt is charging.. lamp is out due to the voltage potentials being near identical on both legs... Vs a lamp in a car that probably sees quite a bit of 'up' time, and power cycles, vs a tractor. I generally start my tractor once per day.. and use it.. then put it up. i start my vehicle -many- times per day.. those power cycles I think decrease the life of the lamp far more than anything short of abusive handling.. etc. I didn't mean to imple that your idea wasn't a suitable alternative, or didn't have merit. It just that I see the average non electrically inclined person as being equally 'afriad' of the automotive application diode as a store bought radio shack one.. and the issue of orientation.. Vs just buying a lamp bulb at walmart for 84 cents for a 2-pack and wireing them in. By and far, most of the wire jobs I see on tractors makes me think that people should be required to have a license to own a set of dykes. The average 'shade tree' mechanic is dangerous with a set of wre cutters.... The other 'plus' for a lamp is that you have a visual indicator of whether the alt is charging... I fhte lamp is lit.. it's a good sign that the battery is not charging. of course.. most people don't pay attention to their ammeter, ( or voltmeter) anyway.. i don't see them paying attention to a lamp much either... As I said in my prev post.. i think you should go ahead and post the # of the diode.. there will undoubtly be people that would rather use a blade connector vs a crimp or solder connector on a barrel packaged diode.. etc. Soundguy
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