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This is the sensor dew heater that fits into the piezo dust reduction receptacle on the filter glass plastic frame. Made up of bits lying around with a touch of red liquid insulation and some thin wire capable of carrying the current.
6 x 100R parallel network ~20R. Voltage supply DC DC converter 0.8V upward. Hot to touch at 4V but plenty of temp control otherwise.
Images are fairly self explanatory - I think.
Last edited by rcheshire; 28-07-2013 at 10:45 PM.
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