RF field strength meter also available below, up to 3 different circuit i have tested photo added.
https://obaidkakar.blogspot.com/2019/10/fm-transmitter-25-watts-88-108-mhz.html
arduino-gsm-jammer-900-mhz
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RFC COIL: 0.68 uH
Authentic Original
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My this blog is purely for educational purpose , the aim is to introduce some unique ideas for electronic circuits enthusiasts, students hobbyist............. . My Youtube Channel : https://www.youtube.com/channel/UCo9zgx6UXdhBhpF51f5JjDw