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STICKY
Megathread: Random observations about electronic devices
12
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page 4
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581
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Using EPROMS And EEPROMs As Programmable Logic With Lisp
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How Vacuum Tubes Work [03:51]
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Making logic gates from transistors
380
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This Little Piggy Audits Your Wi-Fi Security - Hackster.io
3
394
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A 100-Year-Old Electronic Musical Instrument Brought Back To Life
2
285
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The Transistor: a 1953 documentary, anticipating its coming impact on technology
494
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Unknown ESP32 saving modes: Light Sleep, Clock Reduction, Modem Sleep, Hibernation, and a few tricks [17:23]
424
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Tech tips
Mobile phone overheating from fast charging? Put it on a portable USB fan.
5
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Working on a vacuum tube device and ran across an unusual issue.
12
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50-Ohm Impedance: Origins and Why It Became the Standard
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756
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Self-Soldering Circuits [08:15]
4
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Making 100 transistors silicon integrated circuit chips in your garage
1
176
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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
691
IMG
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Flight qualified sealed relays [4032x3024 - 2.05MB]
14
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"Why do many laptops run on 19 volts?"
4
648
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PinePower 120W desktop power supply features display, USB PD, QC 3.0 and wireless charging
6
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Basic Electricity - Resistance and Ohm's law
5
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Soldering vinyl-insulated wire directly to PCB [00:19]
1
465
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LED Basics
799
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Great technique to drop headers without a vacuum desoldering station.
2
1.5K
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FreeCAD Export to KiCAD [05:36]
164
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Build a Burning Laser from an Old DVD Burner [12:52]
872
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Overburning CD-RW experience: Disc speeds up towards the end when played back using old audio CD player!
12
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Observations
Some CD players play audio on both headphones and speakers when the headphone plug is only partially inserted.
3
298
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From dB to S-point : learn to play with power units
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![Flight qualified sealed relays [4032x3024 - 2.05MB]](https://poal.co/static/images/WzKjRa.jpg){kind=link}