Summer is on its way in the Southern Hemisphere and in the next month or two temperatures will be rising. We need to keep our Raspberry Pi's and RF Radio power modules cool to prevent them from failing. I must admit that many modern radios do have build in cooling fans. Unfortunately the Motorola radios that I use do not have build in cooling fans. This is not a problem if you have a few components and Veroboard on hand. I am busy building several thermal cooling fan controllers for the GRHub network equipment.
I decided to publish information on the thermal cooling fan controllers as there might be others that would like to construct these simple easy to build controllers.
I make use of a circuit as published by Mike Martell N1HFX.
(Click on image for larger view.)
The article by N1HFX can be downloaded HERE
I decided to construct the controllers on Veroboard despite the fact that the article has a PCB board outlay.
I used a program called DIY Layout Creator to layout the components on the Veroboard. The program can by downloaded HERE Thanks to Danie ZS1DBJ for providing the link and info to the program.
(Click on image for larger view.)
I will later post images of the completed Thermal Cooling Fan Controllers.
Here is a short video in which I demonstrate the controller:
I apologize for the quality and neatness of the video. Herewith images of the Veroboard construction.
I am sure that I will be able to keep my radios and equipment cool during the hot summer days.
