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Farmall & IHC Tractors Discussion Board |
Re: Delco Alt. 1 wire to 3 wire
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Posted by Bob on February 14, 2007 at 15:57:47 from (69.178.229.154):
In Reply to: Delco Alt. 1 wire to 3 wire posted by SuperA-Tx on February 14, 2007 at 15:44:24:
(This is "Bob", NOT BobM.) SOME so-called "one-wire" alternators will act like standard "3-wire" alternators if you add the extra wires that plug into the internal voltage regulator (who's pins MAY be covered by a rubber plug). With other "one-wire" alternators, this will not work. I know of NO way to determine this, looking at the alternor from the outside, as it has to do with the electronics inside the internal voltage regulator. You can always "swap out" the "one-wire" internal regulator for a (standard) 3-wire unit. Some "one-wire" units have an "oddball" diode setup, instead of the standard "diode trio" in a "3-wire" unit. This can be swapped, too. The 1N5408 diode shown in my photos works equally as well as the "idiot light" that can also be used. It's a matter of choice which way you want to go. A 10 Ohm 10Watt wirewound ceramic-case power resistor is another direct alternative to the light ot the diode. The 1N5408 diode is very robust, and yet is CHEAP. Some of the other guys around here seem to get by OK with lesser-rated diodes.
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