Channel: w2aew

Category: Science & Technology

Tags: how tosimpson 260adjustmentstektronixsimpsoncurrent sourcetekw2aewcalibration

Description: This video describes the function of each calibration adjustment on the Simpson 260 volt-ohm-milliammeter. I also describe (at the end) a 50uA current source (using a Wilson current mirror) I put together to make the initial adjustments on the 260 easier. I don't show the 10A current shunt adjustment because I don't have a good 10A source to use. Please note that I am not a Metrology or Calibration professional, and don't have any traceable standards. The purpose here is to show what each adjustment does. My notes for this video are here: qsl.net/w2aew/youtube/Simpson260cal.pdf Here are good 260 resource pages: simpson260.com simpson260.com/downloads/downloads.htm Good "Theory of Operation" for the 260: simpson260.com/downloads/simpson_260-6p_theory_of_operation.pdf Sears repair manual for the 260: simpson260.com/downloads/simpson_260-3_to_6_repair_instructions.pdf