All things electronic, but mostly aimed at DIY is | Poal: Say what you want.

Welcome • User Guide
ToS • Privacy • Canary
Donate • Bugs • License

©2025 Poal.co

1.2K

•

STICKY Megathread: Random observations about electronic devices

12

ᐊ page 7 ᐅ

748

▶︎

•

Build a Burning Laser from an Old DVD Burner [12:52]

762

▶︎

•

Making Water Spin Like Magic, LATITY-002 [11:41] – ElectroBOOM

471

▶︎

•

Fans; High is next to Off on purpose [17:48] - Technology Connections

593

▶︎

•

The US electrical system is not 120V [24:26] - Technology Connections

581

•

Observations Some CD players play audio on both headphones and speakers when the headphone plug is only partially inserted.

3

978

▶︎

•

“What will happen to a stun gun if you ZAP A 220 VOLT socket with it. What a stun gun is capable of” – KREOSAN English

4

1.3K

•

Moist DVD-R detected as DVD-RAM by S182!

1.1K

▶︎

•

The smallest Discman ever made - was smaller than a CD (partially exposed) - TechMoan

324

•

What Is Brown Out Reset in Microcontrollers? How to Prevent False Power-Downs - Technical Articles

1

271

•

Tech tips Mobile phone overheating from fast charging? Put it on a portable USB fan.

5

183

•

Tech tips Shorted USB data lanes signal a mobile phone the availability of indefinite charging speeds if manually supplied with a voltage.

1.2K

•

Observations Optical drives read some damaged CDs better with underclocked laser, at higher rotation speeds and after heating up?

1.4K

•

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

150

•

Experiences If some features and controls are only accessible via the remote control - Something I disliked about CD/DVD players since childhood.

1.2K

•

Experiences 2012: A Samsung DVD-Video/Audio player had a feature that memorizes damaged files and mark them as unplayable. (Kept in memory even after disc ejection.)

1.2K

•

Observations Some optical drives refuse to speed up again after encountering damaged parts of a disc once. (And other strange speed limits.)

937

•

Power Supply Design: Switch-Mode vs. Linear

670

•

From dB to S-point : learn to play with power units

408

•

Observations Some CD players from different vendors, when stumbling upon damage on audio CDs, accelerate disc rotation when the laser lost track, before trying to seek the last position again.

617

•

Overburning CD-RW experience: Disc speeds up towards the end when played back using old audio CD player!

12

1.4K

•

Google Pixel 5 price just leaked — and it’s very bad news for the Galaxy S20

1.4K

▶︎

•

Why Power Adapters Are So HUGE - TechQuick

2

616

•

Why European power outlets have the best design (essay)

1.2K

▶︎

•

Experiments Extreme Speed Record Player - PhotonicInduction

ᐊ page 7 ᐅ