Make sure you obtain a correctly rated type as some stators have a higher output than others.
The Tympanium units I have tested in the past use a single SCR. This is fine for bikes with coil ignition but may cause battery overcharging when used on a bike with a magneto as there is no load at all without the lights on. The units I tested were pre 2004 and the design may have changed so it would be worth asking the question.
Personally I now use cheap chinese devices with no problems.
what are these cheap Chinese devices that you tal about? Thank Tony.
Thanks for the tip, mine came today. When you wire them is it red + and green - even on pos ground like my 66 TR6?
Green = Neg Red = Pos
Fwiw, that's how Honda uses those colours.
Originally Posted By: NickL
If using on a two wire stator just join any two yellow wires together and connect the joined pair and the other yellow one across the stator
Just as a matter of interest, is there any advantage to joining two of the Yellow wires? Reason I ask is I've seen a single-phase alternator just connected to two of the wires on a 3-phase rect./reg., with the other one just insulated?
Also, seems the way Podtronics do a single-phase is to cut off one of a 3-phase's wires flush with the casing?
All you are doing is 'doubling-up' on a leg of the bridge rectifier, you can just cut off one yellow cable if you wish but as the bridge is 3 phase why not just parallel up two of the legs.
This is all splitting hairs , I think , but here goes ... connecting a single phase ( 2 wire stator ) up to a 3 phase (3 input wire) r/r unit ... by hooking one stator output wire To- 2 , of the 3 phase r/r input wires offers marginal if any gain. The stator output leg that has it output shared by the extra diode bridge may have that side of the bridge run cooler ... but has , at the same time , an extra forward voltage drop to pay in order to operate .
The diode bridge is not the weak point in these low cost ( to manufacturer units ) So whats the point of this bodge ? A 2 wire stator will work just a well , or better , on a 3 phase r/r by leaving the 3rd. input wire ( un tapped)
Re: podtronics VS Tympanium
#576821 12/17/1411:39 am12/17/1411:39 am
You're correct, linking any two of the yellow inputs to the 3 phase bridge will work fine in a single phase application. It is functionally identical to clipping off one of them, and as you say, can not add a series diode drop. I fail to see why someone would consider this a bodge, at least not with my understanding of that word's meaning and intent.
I suspect PODtronics chose the "clipping off a lead" approach because it is simpler, and does not need explaining in the customer documentation ... nor is there possibility of error if the instructions for clipping are misinterpreted.
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