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Re: POSITIVE and NEGATIVE VOLTAGE REGULATORS
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Posted by John T (lil help please) on June 18, 2007 at 09:12:19 from (66.244.83.147):
In Reply to: POSITIVE and NEGATIVE VOLTAGE REGULATORS posted by Tom43 on June 18, 2007 at 08:55:23:
There are many different manufacturers and I have seen some units labeled Pos Ground others Neg Ground and some that are not labeled at all. My usual response it simply to try them and see if they work cuz I believe MOST of them will notwithstanding what Frank talks about where they may last longer if used in the correct polarity. If I were purchasing a replacement Id simply try n buy one labeled for my ground (Pos or Neg) first choice and one not labeled either way as my second choice.
If I get time I might research this question cuz we have all seen it before. Like Frank I kind of see them working at either polarity cuz current through a coil still produces a magnetic field and regardless of their wired polarity WE DO NOT change the individual polarities or windings of any internal relay/coils. Its the same reasoning that a tractor starter motor still turns the same direction regardless of polarity cuz we dont reverse the fields or armature windings with respect to each other as is done on a reversible DC motor.
Anyone agree or disagree or wanna arm wrestle this question lol Wish my old IHC buddy Bob M were here or maybe the other Bob or Gerald has some thoughts to add to this or Franks post?????? John T
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