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and hear a Class D amplifier whose every stage you can point to
Multimeter — for continuity checks and verifying the 5 V rail and 2
A complete skills test from moderately small to truly tiny
XD74LS47 BCD-to-seven-segment decoder
an LM393 comparator turns your audio into pulse-width-modulated pulses
Soldering Practice PCB Kit and hear a Class DThe Soldering Practice PCB Kit is the best way to learn to solder covering both through hole (THD) and surface mount (SMD) techniques on a single board. Work through a range of professional components, power the board via USB C when you're done, and see the result of your work light up immediately. This kit is designed for complete beginners. No prior soldering experience required. Prerequisites You'll need some basic electronics knowledge to
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