Electronics Workshop - April 28, 2016
Time & Location:
- 7:00 PM
- Fire District 6 Training Room, 2123 Jackson Highway, Chehalis, WA
Topics:
- Analog panel meters – determining full scale current
- Twin-T filter
- Let’s design a front-end for a sound card oscilloscope
Bring:
- DC Power Supply (could be a battery with connector or wall powered)
- 7805 or similar voltage regulator
- some resistors, potentiometers, capacitors, breadboard
Notes:
Reference:
- "Lessons in Electric Circuits"
Click for
All About Circuits web site
Analog Panel Meters:
-
Click for
"Unknown VU meter or analog panel meters"
-
Click for
"Method - reuse of VU meters"
7805 Current Regulator:
-
Click for
"7805 IC as current source"
-
Click for
"7805 Constant Current Battery Charger circuit"
Twin-T Filter:
-
Click for
"Twin-T Notch Filter Design Tool"
-
Click for
Analog Devices "Twin T Notch Filter" Mini Tutorial
Sound Card Oscilloscope:
-
Click for
Make: magazine "Sound Card Oscilloscope"
-
Click for
Google search for "Sound Card Oscilloscope"
-
Click for
Analog Devices "Front End Turns PC Sound Card into High-Speed Sampling Oscilloscope"
