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STICKY
Megathread: Random observations about electronic devices
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329
IMG
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Got these great capacitors for sale cheap - Great value! [650x500 - 60KB]
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TouchTone555: An Analog Synth with a 555 Timer - Hackster.io
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745
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This Little Piggy Audits Your Wi-Fi Security - Hackster.io
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How Vacuum Tubes Work [03:51]
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Build a Burning Laser from an Old DVD Burner [12:52]
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PinePower 120W desktop power supply features display, USB PD, QC 3.0 and wireless charging
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A 100-Year-Old Electronic Musical Instrument Brought Back To Life
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774
IMG
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Flight qualified sealed relays [4032x3024 - 2.05MB]
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Tech tips
Mobile phone overheating from fast charging? Put it on a portable USB fan.
5
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"Why do many laptops run on 19 volts?"
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The Transistor: a 1953 documentary, anticipating its coming impact on technology
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Unknown ESP32 saving modes: Light Sleep, Clock Reduction, Modem Sleep, Hibernation, and a few tricks [17:23]
877
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Great technique to drop headers without a vacuum desoldering station.
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Soldering vinyl-insulated wire directly to PCB [00:19]
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Observations
Observation: The audio inputs (white and red) of old CRT televisions can be used without needing a video (yellow) signal, while newer TVs usually require a video signal for the audio inputs to be activated at all.
4
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LED Basics
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FreeCAD Export to KiCAD [05:36]
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50-Ohm Impedance: Origins and Why It Became the Standard
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Basic Electricity - Resistance and Ohm's law
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Self-Soldering Circuits [08:15]
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Making 100 transistors silicon integrated circuit chips in your garage
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Making logic gates from transistors
205
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Using EPROMS And EEPROMs As Programmable Logic With Lisp
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Velociraster! And Other Oscilloscope Nonsense [14:24]
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Shocking Things With 300 9 Volt Batteries! [18:31] [108 volts on a PC fan]
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