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Hi Chris
The photo called Velcro show a bit of the velcro in the area I mentioned.
Heater is the finished heater 'strap', looks rather like a length of wire.
Fitted shows the heater in place.
Of course, being black on black makes it so easy to see!
The hair dryer idea should also work. I do suggest using a variable voltage supply, particularly if you are running from a battery. You can then reduce the amount of power the heater is using to keep the dew off.
I have a cheap temp/humidity sensor from ebay that I keep on eye on. When humidity goes over about 80%, I use the heater. I normally leave the sensor inside the dew shield to have an idea of conditions in there.
I read somewhere about putting it in this area. Seemed to make more sense to me than heating the whole front end of the scope.
Philip
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