Instrumentation and Automation – 01
2021-03-05
Here are some Test and measurement notes. These ideas come from practical experience. But the jots are not in any order but are quite important. Scope Notes If the waveformRead More
Test Measurement and Test jigs
2021-03-04
Test Tools are needed for Troubleshooting and Repairing Electronic Gadgets, Equipment, Electrical Panels and Machines. Precision Instruments are required for calibration of field and machine control electronics. These are alsoRead More
Oscilloscopes in Test Measurement
2021-03-04
The usefulness of an oscilloscope is not limited to the world of electronics. With the proper transducer, an oscilloscope can measure all kinds of phenomena. Type 465 Tektronix oscilloscope. ThisRead More
Temperature Calibrator Milli Volt Source
2020-09-14
This is a Milli-Volt and Milli-Amp Source for Calibration of Temperature Measurement and Control Instruments using Thermocouples. There is also a Passive Variable Resistance Source for Simulating a PT-100 RTDRead More
LM3914 – Dot Bar Display Driver
2020-08-20
The LM3914 is a monolithic integrated circuit that senses analog voltage levels and drives 10 LEDs, providing a linear analog display. A single pin changes the display from a movingRead More
3-1/2 Digit ICL7107 DPM Digital Panel Meter
2018-12-17
This is a Digital Panel Meter based on ICL7107. This was the workhorse Digital Readout chip before Low power uC designs were developed. Even now it is the easiest wayRead More
DC Regulated Power Supply
2018-11-16
This is a Regulated 0-30 V DC Power Supply manufactured by me in small numbers, 0-30V 5A and 5V -5A. It had a Switching Preregulator. This keeps the Vce acrossRead More
ICL8038 Versatile Waveform Generator
2017-08-16
The ICL8038 waveform generator is a monolithic integrated circuit capable of producing high accuracy sine, square, triangular, sawtooth and pulse waveforms with a minimum of external components. The frequency (orRead More