That's correct. On cheap heaters you can actually see the arc. The better
heaters had a capacitor across the contacts and I never had a problem with
those. (Superior brand). I think I might still have one left. I maintained a
number of fish tanks at one time, but it just got to be too much to take care
not to mention all the room it required. It is a very interesting hobby though.
On 09, Feb 2011, at 20:21, Ken Alexander wrote:
> Someone please correct me if I'm wrong but I think it's (arcing across) the
> contacts on a bi-metallic thermostat in the heater that makes the noise.
> Ken Alexander
> --- On Wed, 2/9/11, KD7JYK DM09 <email@example.com> wrote:
>> Out of curiosity, how much RFI can a piece of nichrome wire
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