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One of the really great things about the E-14 Web Site is how much one can learn just by reading and paying attention to some of the threads. On Jan 9th michaelkellett posted information on the OP191 and OP192 Op Amps which he likes to use in his designs. Being curious to play with them for myself I marked down the number and ordered some of the OP 191 for my shop. The OP191s that I received were in the SOIC8 package so it was necessary to mount it on an adapter board so that I could conduct som ...
     This is the first time that I have encountered the concept of 'LED Amplifier'. I did not even know what it was until the situation presented itself and I knew that it was what I needed to solve the latest challenge from my Mom. Let me back up a little as you may have not read some of my previous blogs. My Mom is in a nursing home with a disease that is slowly stealing her ability to move, talk, and enjoy life. As her condition has worsened I have tried to use technology ...
Nine year old grandson, Ivan, and I had two projects on the schedule for his Christmas Vacation. The first was to build a special Solder Iron Modification, See: Solder Iron for Ivan with a built in Timeout With the solder iron complete our plan was to use it to build the second project, a small bench power supply. We wanted a supply that could deliver up to 15 volts at 2 amps. We also wanted it to be protected from shorts and easy to use. Ivan is just beginning and I want his initial exploratio ...
The other day I came across this interesting circuit board from a piece of Medical Equipment. My interest was immediately caught by the LMD 18200 H-Bridges in the upper left corner. I checked the part number out on Newark's site to see if they were still current. I find it more fun to investigate a part if it is still available. In this case an improved version is still being manufactured and is available. Here is the listing from Newark: http://www.newark.com/texas-instruments/lmd18 ...