My very first DIY Tube Amplifier!! Push Pull El34 or 6L6. Around 25W per channel. 475V on B+. Mutch of it is recycled parts. I used a head crashed 1980s hard drive
If You Can't Find It, Build It DIY Tube Amp – Part One
DIY Kit FU25+6N8P Class A Vacuum Tube Amplifier Kit Audio Tube Power Amp 10W+10W | eBay
Building a Tube Amp! Does it produce better audio quality though? EB#47 - YouTube
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Nobsound Amplificateur à tube classe A 6n9p et 6L6GCR Tube Amp Amplificateur stéréo DIY Kit HiFi 2.0 Channel Valve Amplificateur Kit 7 W x 2 : Amazon.fr: High-Tech