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

  • From: Peter Sheppard <peter.sheppard@xxxxxxxxxx>
  • To: "'modeleng@xxxxxxxxxxxxx'" <modeleng@xxxxxxxxxxxxx>
  • Date: Wed, 30 Mar 2005 16:50:22 +0100

John,

Ah, now I understand.

Stud mounting diodes can be either stud anode or stud cathode - if you stuck 
with the same diode you would have been OK.

I was talking about the diode symbol where the forward pointing arrow (the 
pointy bit!) touches the vertical bar which is the cathode (+) and what I would 
attach to the battery end.

Cheers

Peter


On Wednesday, March 30, 2005 4:30 PM, John Rippengal 
[SMTP:j.rippengal@xxxxxxxxxxxxxx] wrote:
> 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>
>


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