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Explainer https://drive.google.com/drive/folders/156nn9rClRLJplS4M46s56-Pibi86Z-Kp for schematics and .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on https://www.analog.com/media/en/technical-documentation/data-sheets/8063fa.pdf Altera BGA-36 V36 VBGA BGA-48 - pitch 0.8 mm Highspeed card edge connector for 2.4mm PCB's with 70 contacts (not polarized Highspeed card edge connector for 2.4mm PCB's with 60 contacts (polarized Highspeed card edge connector for PCB's with 60 contacts (polarized Highspeed card edge connector for 1.6mm PCB's with 40 contacts (not polarized Highspeed card edge connector for PCB's with 70 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 20 contacts (not polarized Highspeed card edge connector for PCB's with 50 contacts (not polarized Highspeed card edge connector for 2.4mm PCB's with 30 contacts (not polarized Highspeed card edge connector for 2.4mm PCB's with 05 contacts (not polarized Highspeed card edge connector for 2.4mm PCB's with 40 contacts (polarized Highspeed card edge connector for 2.4mm PCB's with 60 contacts (not polarized Highspeed card edge connector for 1.6mm PCB's with 40 contacts (polarized Highspeed card edge connector for IQRF TR-x2DA(T) modules, http://iqrf.org/weben/downloads.php?id=104 8 pin DIP socket A-004 4 Knobs Screws, nuts, and spacers (see [build notes](build.md | | | | C9 | 5 | 2N3904 | Small Signal NPN Transistor, TO-92 | | | | | | | Tayda | A-1847 | | R5, R29 | 3 | A1M | Potentiometer | | | | | | | S3 | 1 Hardware/lib/aoKicad | 1 Consider replacing transistor through-holes with sockets or with modifications This is a few comics; standardized appending alt/title text under images (extra useful for non-browser users $host->add_hook($host::HOOK_RENDER_ARTICLE_CDM, $this); // $host->add_hook($host::HOOK_ARTICLE_FILTER.

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