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I have 2 Kendrick controllers, 1 a dual channel the other a Digifire 7, straps on all EPs, on the finder (objective and EP), on the secondary and on my green laser pointer. all up 9 heaters. can use a lot of juice from a 12v battery but the trick is to run the EP ones at 30%, the secondary at 10% and the others at 50%. Put them all on when you take the scope out and I can get 5/6 hours of dew free observing.
ONly prob is takes about 10 mins to setup, and a bit loger to pack up, and cables everywhere, but MUCH less frustrating, benn ages since I have had a dew problem.
Malcolm
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