Hi all,
I am in the process of building a dew controller following instructions from here
http://www.blackwaterskies.co.uk/201...ew-heater.html
I am also making my own nichrome wire heater straps from the same site
http://www.blackwaterskies.co.uk/201...ew-heater.html
Using the online calculator, I estimated that I will need a 12.5w 1.04 amp heater for my ED 80 and 25w 2.09 amp for my C8.
I will also be making Al Sheeney's resistor heater for my 50mm finder (3.85w 0.32 amp).
This bring the total amp draw to just under 3.5 amps.
I also want to make room in the box for my Canon DSLR power. The AC adapter for the battery is rated at 7.8v 2A output.
Now I have a few questions which I hope members can assist me with
1. I should be able to run the entire setup using a 12v 6A laptop power supply like this
http://www.ebay.com.au/itm/12V-6A-AU...bbd6dc3&_uhb=1 Please confirm if this is correct.
2. I cannot find a 12v to 7.8v step down converter. I can get a 7.5v 2A module
http://www.ebay.com.au/itm/221419126...84.m1423.l2649 Would this be ok? (I cannot find 8v 2A modules)
Thanks for your help in advance!
Bo