[RFI] Aquarium Heater

[dalej]

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.   

73
Dale, k9vuj


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.
> 
> 73,
> 
> Ken Alexander
> VE3HLS
> 
> 
> --- On Wed, 2/9/11, KD7JYK DM09 <kd7jyk at earthlink.net> wrote:
> 
>> Out of curiosity, how much RFI can a piece of nichrome wire
>> produce?
>> 
>> Kurt
>> 
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