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Before I show you the power supply module for this project I thought I would share the basic block diagram of the different modules and how the power and control lines will interconnect.     As any of the experienced builders on e14 will tell you the more planning that you do ahead of time the less rebuilding you will have to do down the line. I always like to know generally where I am going with a project. This doesn't keep me from changing my mind or having to readjust my plans du ...
jw0752

Today was a Great Day

Posted by jw0752 Top Member Jul 25, 2017
This summer my Grandson Ivan has been coming to spend the day with me twice a week. Ivan is a very serious 10 year old with an interest in electronics. I always try to have a plan in place with experiments and activities. These have gone well with Ivan maintaining focus and interest for sometimes a couple hours at a time. Most of the time it's grandpa that needs a break and not Ivan.   Today the topic for our day was learning to use the computer to draw schematics. We began with a simple d ...
This is going to be an update and expansion of range for a test device I built and posted on the forum two years ago.   Battle of the Batteries - E*** vs D*** vs Bargain   The device that I built for that blog was designed to monitor a battery voltage that was under constant current load from a non-programmable electronic load and compare it to a target voltage that was selected by me. It was my purpose to time how long it took for the battery voltage to decay below the set target v ...
jw0752

Thank You Wilfred Klatt

Posted by jw0752 Top Member Jul 10, 2017
As I was rummaging through some of my stuff this evening I came across this old General Electric Photo Electric Relay that was given to me 60 years ago.     I wondered if it still worked so I hooked it up. It did not work so I began to trouble shoot it for the problem. As I worked on it I was remembering the man who gave it to me. His name was Wilfred Klatt and he worked in some capacity with the local power supply company. At that time it was called NSP or Northern States Power Co ...