Alachua Astronomy Club: Cleaning Optics with Collodion

	Alachua Astronomy Club, Inc.	Member Astronomical League	Member International Dark-Sky Association
	ATM Section: Some SIG Activities	Member Astronomical League	Member International Dark-Sky Association
	29°39' N, 82°21' W Altitude: 50 Meters (more or less)		Updated Mar 21, 2003
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Homemade Dew Controler
On March 18th, 2003, Joel Centeno, one of our new members, demonstrated to the AAC-ATM SIG how to make a parallel or series resistor that will keep the dew away from your eyepiece, finder or tube!
The meeting was held at the Seminar Room of the Physics Department at the University of Florida. As is now tradition, this was a hands-on project where the club member could visualize how the work is performed. Thanks to Joel for the demonstration!

Thanks to Don Loftus for taking and providing the pictures.

The gang listens in on Joel (on the right)!

The source of heat, 10 ohm resistors.

The tricky part - soldering the resistors together.

Testing the circuit.

The final product, protected with heat duct cover.

Thanks to Joel Centeno for showing us how to stave off the dew!
Sometime soon, we will post his slide presentation here with the details of the circuit and the math. Keep checking back!

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