🌘 學習基礎電子學：打造個人專屬的螢火蟲
➤ 從零開始，用動手實踐點亮學習之夜
✤ http://a64.in/posts/learning-basic-electronics-by-building-fireflies/
作者分享了透過親手製作電子「螢火蟲」，從零開始學習基礎電子學的歷程。他利用 Astable Multivibrator 迴路，結合光敏電阻（LDR）和電位器（Potentiometer），成功調整了 LED 的閃爍時間和亮度，使其能在夜間發光，並優化了能源效率。過程中，他克服了元件故障、模擬器不符預期、焊接煙霧問題，甚至從廢棄電路板上拆卸元件，最終成功製作出多個功能性的「螢火蟲」，重拾了學習新知的熱情與樂趣。
+ 這篇文章太激勵人了！從完全不懂到自己做出會亮的「螢火蟲」，過程中的各種小挫折和解決辦法都寫得非常真實。我也想試試看！
+ 作者分享的學習方法很棒，結合 AI 工具和實際操作，讓電子學不再是枯燥的理論。特別是那個自製的閃爍延遲模擬器，
#電子學 #DIY #學習 #創客 #Astable Multivibrator #LDR #Potentiometer

The Atari Punk Console, Now With More Vacuum Tubes

Most of us have beheld the sonic glory of an Atari Punk Console, that lo-fi synth whose classic incarnation is a pair of 555 timers set up to warble and bleep in interesting ways. Very few of us, however, have likely seen an APC built from 555s that are made from vacuum tubes.

It's little surprise to regular readers that this one comes to us by way of [David] at Usagi Electric, who hasn't met a circuit that couldn't be improved by realizing it in vacuum tubes. His "hollow-state" Atari Punk Console began with the 18-tube version of the 555 that he built just for fun a while back, which proved popular enough that he's working on a kit version, the prototype of which served as the second timer for the synth. With 32 tubes aglow amid a rats-nest of jumpers, the console managed to make the requisites sounds, but lacked a certain elegance. [David] then vastly simplified the design, reducing the BOM to just four dual-triode tubes. Housed on a CNC milled PCB in a custom wood box, the synth does a respectable job and looks good doing it. The video below shows both versions in action, as well as detailing their construction.

As cool as a vacuum tube synth may be, we realize that not everyone goes for the hot glass approach. No worries -- plenty of silicon Atari Punk Consoles to choose from here. There's one built into a joystick, a circuit sculpture version complete with mini-CRT, or even eight APCs teamed up with MIDI control.

#classichacks #musicalhacks #555 #apc #astable #ataripunkconsole #monostable #oscillator #synth #vacuumtube