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Re: [APD] hydrogen sulfide - thanks

S. Hieber wrote:
> You have my curiousity sparked.
> So this is running AC at 60 volts? Why all the resistors?

The resistors are the heating element.

> To reduce the voltage across the across the substart cable
> termina, I suppose. Why not let the substrate cable be the
> only significant resistance. Those external resistors are
> converting electrical energy to heat and then dumping it
> outside the tank. 

Yes, if I understand Mariano correctly the resistors heat up the
granite slab and gently heat the underside of the aquarium. Very neat.

So it isn't in the tank...

Stuart Halliday
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