Welcome to ebum — your practical hub for DIY electronics, custom audio, and smart hardware! ⚡
Turn vintage speakers into Bluetooth sound systems, build 18650 lithium battery packs, master DC-DC converters, or fix everyday tech without expensive tools. We break down complex electronics into clear, beginner-friendly guides.
What you'll find:
• DIY Audio & Amplifiers: Bluetooth speakers, Class D amps (TPA3116D2, TDA7498, PAM8403), crossovers & upgrades.
• Power & Batteries: 18650 packs, 3S BMS wiring, fast-charging power banks & solar setups.
• Modules & Tutorials: Buck/boost converters (LM2596, MT3608), soldering & wiring hacks.
• Repairs & Teardowns: LED fixes, adapter mods & hardware upgrades.
Our mission: help you build, repair, and innovate with confidence — saving money while mastering the craft.
🔔 Subscribe & hit the bell so you never miss a new build!
ebum
New video is live! ⚡
Build a DIY Fast Charge Power Bank in only 3 minutes – Type-C, protected, pocket-sized.
Full tutorial here: https://youtu.be/PQgpdHNFMVk
Would you build one? Drop a 🔋 if yes!
1 week ago |[YT] | 3
View 0 replies
ebum
YouTube Community Post (English)
New DIY is live! ⚡
Convert any old laptop adapter (or 6V–24V power supply) into a dual 5V 3.1A USB fast charger.
Step-by-step with the HW-681 buck module + real tests on 6V, 15V and 24V adapters.
Stop throwing away old power bricks!
Watch: https://youtu.be/oC9ArrDJ9Q4
What voltage adapter are you converting? Drop it in the comments 👇
Like if this was useful!
3 weeks ago (edited) |[YT] | 2
View 0 replies
ebum
🎵 Upgrade Your DIY Speaker Build! 🔊
Just dropped a new video taking a deep dive into the WEAH-3509A 3-Way Crossover (300W–400W)!
If you want crystal-clear sound separation and want to learn how to properly wire and fine-tune your High, Mid, and Low frequencies, this step-by-step walkthrough is for you.
🔍 What’s inside:
• Step-by-step wiring guide for Input, Bass, Mid & Treble
• How to use the onboard frequency adjustment switches
• Component breakdown (MKP capacitors & inductors)
👉 Watch the full guide here: https://youtu.be/kPZStnKi0gM
Have you used crossover filters in your custom builds before? Let me know in the comments! 👇
#DIYAudio #AudioElectronics #SpeakerBuild #WEAH3509A #HiFiAudio
1 month ago |[YT] | 1
View 0 replies
ebum
Hi ebum community! ❤ We’ve been talking a lot about audio systems and power solutions lately. I want to make sure the next tutorial is exactly what you need.
Which of these should I dive deeper into next? Or is there a specific 'headache' you're facing with your DIY builds? Let me know in the comments! 👇
2 months ago |[YT] | 9
View 0 replies
ebum
🌍 ebum is Going Global! 🚀
I’m excited to announce that this channel is moving to a global format! To make my content accessible to everyone, many of my upcoming videos will be non-verbal (silent), focusing on visual storytelling that anyone can enjoy, regardless of their language.
For other videos, English will be the primary language. Thank you for being part of this evolution! Let me know in the comments where you’re watching from! 👇"
-----
🇮🇷 خبر مهم: ebum جهانی می‌شود!
دوستان عزیز، برای ارتباط با مخاطبان بیشتر در سراسر جهان، از این به بعد تمرکز کانال روی محتوای بین‌المللی خواهد بود.
خبر خوب اینکه بسیاری از ویدیوهای آینده به صورت «بی‌کلام» ساخته می‌شن تا شما عزیزان هم بدون هیچ مانع زبانی، بتونید از کیفیت بصری و محتوای ویدیوها لذت ببرید. در بقیه موارد هم زبان اصلی ویدیوها انگلیسی خواهد بود.
ممنون که در این مسیر جدید هم همراه من هستید. نظراتتون رو برام بنویسید! ❤️
2 months ago |[YT] | 12
View 0 replies