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High Voltage Detector (Electrostatic Polarity Detector with increased sensitivity)
(www.youtube.com)
Feb 21, 2018 This is an electrostatic polarity detector with increased sensitivity. This device makes it possible to investigate the polarity of the high voltage. RED LED = Positive, BLUE LED = Negative, Both LED = Alternating Voltage On the HVDC line, only one LED will be on. How to make an Electrostatic Polarity Detector :
- How to make an Electrostatic Polarity Detector(Electric Field Detector) https://www.youtube.com/watch?v=WptwVzK7cK0
Jun 7, 2017 This is a simple Electrostatic Polarity Detector(Electric Field Detector) made of FDS8958A Chip. This chip(FDS8958A) contains N- and P- Channel Enhancement mode power field effect transistors. Old Version : Using 9V battery. New Version : Using 3V battery. The circuit diagram appears on the video. 07:13
IRF 7317 is replacement part for FDS8958A - Thomas Kim 2017
See improved schematic by Thomas Kim in 2018 https://lemmy.staphup.nl/comment/66129