Back to Home

General Forum Message

Forums: Atm · Astrophotography · Blackholes · Blackholes2 · CCD · Celestron · Domes · Education
Eyepieces · Meade · Misc. · God and Science · SETI · Software · UFO · XEphem
RSS Button

Home | Discussion Forums | Misc. Topics | Post

Be the first pioneers to continue the Astronomy Discussions at our new Astronomy meeting place...
The Space and Astronomy Agora
Modulator Kit/Dew Heaters

Forum List | Follow Ups | Post Message | Back to Thread Topics
Posted by Fred Frederick on August 29, 2000 14:02:22 UTC

Just a note for those persons who decide to make dew heaters for a telescope or an eyepiece. More than likely you will end up running direct from the 12V PS and not using a controller which can save on the power.
I found this site in Kingston Ontario,CAN. which sells a DC to Pulse Width Modulator Kit for $24.99 CDN. It will be about half the price in the U.S.
The one catch is that you get all the components,circuit board and have to construct it yourself. You would also need a project box to install it in but that would only cost a few dollars, available from Radio Shack.
The kit number is K8004. Check it out, it`s a real bargain considering a controller from Kendricks cost $90 CDN or $70 U.S.

Follow Ups:

    Login to Post
    Additional Information
    About Astronomy Net | Advertise on Astronomy Net | Contact & Comments | Privacy Policy
    Unless otherwise specified, web site content Copyright 1994-2024 John Huggins All Rights Reserved
    Forum posts are Copyright their authors as specified in the heading above the post.
    "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET"
    are trademarks of John Huggins