🔊 TDA7293/94 amplifier with NE5532 preamplifier, 110/70W. Assembly and connection.
✅ $2 for 1-4 Layer PCBs, Get SMT Coupons: https://jlcpcb.com/DYE
✅🎶 Hello everyone! In this video, I'm building an amplifier using a TDA7293 chip and a preamplifier using an NE5532 chip. I built one for myself and decided to share the project on my channel in case it's useful to someone else.
⏩ Link to the archive with Gerber and LAY files:
https://drive.google.com/drive/folder...
⏩ Links to Aliexpress:
✅ https://got.by/5ka5ri - Radio parts store (almost everything)
✅ https://ali.ski/BamPU - 0.25W resistors
✅ https://ali.ski/S-wtr7 - 2W resistors
✅ https://ali.ski/Nc3aCF - Zener diodes
✅ https://ali.ski/gPhmF - NE5532
✅ https://alii.pub/666umm - 2- and 3-pin terminal blocks
✅ https://alii.pub/5wlzo3 - Electrolytic capacitor store Capacitors
⏩ I bought the TDA7293 microcircuit locally at a radio market, but there are a lot of fakes on Ali.
🔴 https://alii.pub/66anon - here are the originals: EXPENSIVE TDA7294/TDA7293 (for display)
I also bought some parts at a radio market.
✅ https://alii.pub/6r53hk - SigPeak DSO1511E+ oscilloscope
✅ https://alii.pub/6qd81v - FNIRSI ESR tester for radio components
✅ https://alii.pub/6r53e2 - POS60 solder
✅ https://alii.pub/6qd899 - FR4 PCB
🎵📱 https://alii.pub/64rpo6 - Shmci Hi-Fi MP3 player
✅ https://ali.ski/Mhtho - GVDA GD128 multimeter with a large display and wide functionality.
⏩ Links to converters:
✅ https://prom.ua/p380405605-preobrazov... - Converter as in the video (I bought it at a radio market)
✅ https://got.by/59xt90 - 150W bipolar converter (didn't work)
✅ https://got.by/59xteg - 180W bipolar converter (32+32V)
✅ https://got.by/59xsza - 350W bipolar converter (+-20-30V)
✅ https://ali.ski/Kzkvu - 1000W bipolar converters
⏩ Article on choosing a power supply for an amplifier
http://soundbarrel.ru/pitanie/mosnost...
⏩ Video on assembling a 12V 3S Li-ion 18650 battery:
• 🔋 Сборка аккумулятора 3S5P Li-ion 18650 12...
⏩ Mini tabletop circular saw (I cut boards)
• 🔁Настольный Циркулярный станок для резки п...
🔻🔻🔻 For those willing to support financially, with advice, or with questions
💲👉 https://donatello.to/RadioLab
Thank you for your time!
00:00 - Introduction
01:05 - Ordering boards from JLC PCB
03:41 - Amplifier assembly
07:35 - Assembled TDA7293+NE5532 amplifier
08:11 - Connecting the TDA7293+NE5532 amplifier
10:07 - Test with music
12:00 - Conclusions
12:19 - Thermal imager view
12:33 - Conclusions and recommendations