Search found 2 matches
- Tue Jan 05, 2010 4:17 pm
- Forum: General Discussion
- Topic: Dew Zapper and PWM DC Motor Controller
- Replies: 10
- Views: 4360
Re: Dew Zapper and PWM DC Motor Controller
Thanks for the replies, I'm a new N&V subscriber and figured I'd try these forums. The wire is from an old installation that plugged into a outdoor outlet. I got about 50ft and don't have any information about the specs or power rating. Just know it was used to prevent ice dams on roofs. The 40 ...
- Mon Jan 04, 2010 4:22 pm
- Forum: General Discussion
- Topic: Dew Zapper and PWM DC Motor Controller
- Replies: 10
- Views: 4360
Dew Zapper and PWM DC Motor Controller
I am making a dew zapper for a telescope using a motor controller (12v in, 12v out 15A). I figure I need maybe 40 watts (drawing 2 amps) at each of the heating bands (I plan on having 4 heating bands, each will wrap a couple times around a eyepiece and finder scope, etc). I am using the leftovers of...