Suggested by a 1965 Electronic Design, this circuit was originally proposed for oscilloscope operation, but can be used with other instrument types.
September 2017 - SparkFun offers through Mouser Electronics its protboard solderless board that...
April 2017 - Texas Instruments bq51222 integrated circuit for chargers and other Qi wireless power...
The circuit is from an old documentation making use of an operational amplifier of the time. The...