[modeleng] Re: Topsy - to charge and how to charge, that is the question!

Rich,
I'm 100 percent with you on the current flow from anode to cathode BUT "the 
cathode is at the pointy end"???????

The picture I have of the diodes I mounted in the system I constructed is of 
a top hat shape. The top of the hat has a terminal - the pointy end?. The 
bottom of the hat - the brim sort of - has a mounting screw. You fix the 
brim to a heat sink using a mica washer etc and a nut on the screw. (The 
mica is because the heat sink could well be earthed). With my diodes the 
pointy bit was the anode and the base/brim was the cathode. I thought they 
were all made that way?

Anyway my aeroplane flew for 13 years and charged its batteries ok with them 
wired that way.

John

From: "R.L. Roebuck" <rlr20@xxxxxxxxxxxxx>

............................................
specific. A diode has
> an annode and a cathode.
>
> The end which the current comes out (the "pointy end" or cathode) should
> be connected to the battery, so that current can only flow from alternator
> to battery.
...................................... 

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