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Support: http://www.toroid.com.br/ SUBSCRIBE TO THE WR ELECTRONIC MAGAZINE ANNUALLY: https://go.hotmart.com/I43326457Q =================================================== EXCLUSIVE WR KITS COURSES: ESP32: Learn for Real! https://go.hotmart.com/D48413904X Introduction to the Powerful STM32 https://go.hotmart.com/T46339670E KiCAD Schematics and Printed Circuit Boards https://go.hotmart.com/A40158619U Professional Audio and Amplifiers https://go.hotmart.com/G26299296Q Proteus Circuit Simulation and Layout Creation https://go.hotmart.com/U8008895D Digital Oscilloscope Training https://go.hotmart.com/D9607887A Reading and Interpreting Datasheets https://go.hotmart.com/N8870397A LT Spice Basic Course https://go.hotmart.com/G11914923Y LT Spice Intermediate Course https://go.hotmart.com/S16944563J Theoretical Analysis of Commercial Amplifiers https://go.hotmart.com/T41877396A Set Up Your Professional Electronics Lab https://go.hotmart.com/H12758165R Arduino for Beginners https://go.hotmart.com/W13291812W ===================================================== OTHER RECOMMENDED HOTMART COURSES: MOSFET Transistor: Theory and Application https://go.hotmart.com/Y43352724J Circuits with JFETs https://go.hotmart.com/U43060859B Modern Interfaces https://go.hotmart.com/K42796855N General Electronics https://go.hotmart.com/G7368331U Smartphone Maintenance https://go.hotmart.com/K6505199S Notebook Maintenance https://go.hotmart.com/N6635304E ===================================================== WR Kits Store: https://wrkits.com.br/ WR Kits Playlists: https://wrkits.com.br/canal Subscribe to our Telegram channel: https://t.me/joinchat/AAAAAFjxor3czJ6... Fanpage: / wrkits WR Kits Instagram: / wrkits Twitter/Instagram: @WagnerRambo Contribute to WR Kits on one of the platforms: / wrkits https://apoia.se/wrkits https://www.padrim.com.br/wrkits =================================================== Subscribe to our other Channels: Wagner Rambo - Personal Channel / wagnerrambo Eng. Wagner Rambo - Behind the Scenes WR Kits and Engineering Tips! / engwagnerrambo WR Bits - Digital Electronics and Processors / wrbits Reading Only - Book Tips and Miscellaneous Comments / sóleitura Fitness Engineer - Bodybuilding, Diet, Training and Information / engenhariafitness ===================================================== Video Description: By request, we implemented with the 4047 an adjustable high frequency oscillator, very simple and low cost! WR Kits video lesson on Electronic Engineering, the Friday Classic! ===================================================== Files to download: Option 1 https://github.com/wagner-rambo/arqui... Option 2 https://mega.nz/file/KFwRWIwA#AR_nUgt... =================================================== =====================================================