BBB-4 Natural Receiver - Part 3 ( Final Schematic And Audio Amplifier )

Get $5 of NEW USER FREE CREDIT using PCBWay. Full feature custom PCB prototype services, PCB assembly, SMD stencils and CNC / 3D Printing: https://pcbway.com/g/gSv3JS BBB-4 VLF Receiver for broadband 0.1 to +17 kHz reception of naturally-occurring ELF-VLF radio phenomena. Also, this unit will not receive ULF earthquake signals as far as I know. At this point I am still experimenting with the circuit, but for now this is the final schematic I settled for. In this Part 3 video I am presenting the final prototype of the receiver with the new audio amplifier stage that I spoke about in Part 2. I am also talking about a few other adjustment you can make according to your own preferences. There will also be a PCB board design soon for this project that you will be able to order it from PCBWay. There was a mistake in the schematic in the audio amplifier section. Download here the corrected and also updated schematic: https://yo6dxe.com/download/33586 PCBWay 9th Project Design Contest, Edge AI & IoT, Robotics, Power, Open Theme, Mechanical: https://www.pcbway.com/activity/9th-p... PCBWay Future Innovators Program | Student Manufacturing Support: https://www.pcbway.com/project/sponso... 73, YO6DXE Do you enjoy the content ? DONATE with PayPal to support me ! https://paypal.me/yo6dxe WEBSITE: https://yo6dxe.com INSTAGRAM:   / yo6dxe   ORIGINAL BLOG ARTICLE: https://pe2bz.philpem.me.uk/Comm/-%20... PCB PROJECTS: https://www.pcbway.com/project/member... AFFILIATE DISCOUNTS: https://yo6dxe.com/affiliate-discounts NOTE: I’m not an engineer, but I build equipment for fun as way to relax, while enjoying the amateur radio hobby. All videos and projects are built with the limited knowledge I had at the time I recorded each video. Some projects may be updated in time and I publish new videos. Always check for the latest versions ( read the blog articles ). DISCLAIMER: Some links and all the discount codes are part of affiliate programs. It doesn’t cost you anything extra, but you support me by using them and you also get better deals on the offered products or services. I always try to reward you with various discounts offered by partners and collaborators. #vlf #vlfreceiver #sfericsreceiver #naturalradio #elfreceiver