I find that the Telrad is the first thing to dew up and become completely useless. Anyone interested in how to make a dew heater for less than $2?
It looks like the attached. If there is enough interest I will write up a DYI Guide.
I've just ordered a Telrad Friday, and planning a heater - I'd love to see how you made yours. Looks like you have 1/2 or 1 watt resistors in series, heatshrink tubed? I'm keenly interested!
well il be darned.. a couple of resitors in heat shrunk tube.. thats got to be it.. how truely ingenious and simple. please provide some more details and pictures.
There's also an IIS member who has a few (approx 1000) resistors left over from his dew heater project.
Maybe he is willing to part with one or two of them.