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Old 28-11-2012, 11:33 PM
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Shark Bait (Stu)
'ZZ9 Plural Z Alpha'

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Join Date: Dec 2011
Location: Brisbane
Posts: 1,017
Dew Heater Strap Success

With heavy cloud cover removing any chance of see the eclipse tonight, it was time to make up my first dew heater strap. I treated the work like it was going to be a final product worth keeping, but it was still a test run. Twelve 1/2W 390R resistors spaced at 15.7mm fit nicely over the end of the 60mm dia finder scope. There was just enough overlap to allow a good solder joints.

It will be interesting to see how it performs when the scope is out in the dew again but the heater is very warm at full tilt. I will have to wrap the outside face of the heater to direct the heat into the finder scope. Only three straps left to make.

I am very happy with how well the system works. There is plenty of adjustment to get the heat just right. Very little cost and very rewarding to know that I put the whole lot together. Of course it would not have happened without the author and other contributors to these threads.
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