I'm about to build the simple Dew Heater controller shown here:
http://www.backyard-astro.com/equipm...dewheater.html
but I just had a question about the frequency, for this design they have used a pulse frequency of 1hz and I was wondering if this seems a bit slow to be efficient - I'm wondering if it would allow the element to cool too much between pulses, especially on the lower duty-cycle? They state this value was chosen to avoid spikes but I won't be using the same supply for any computer gear (just fan and dew heaters) so was wondering if any of you electronics experts had an opinion on the optimal frequency? TIA! Bruce
(Oops! I meant to post this in the DIY section - how do I move a thread?)