DIY Tube Preamplifier Dual Boards supplied separately class A power
This video demo music playing of a DIY tube preamplifier, it build in dual boards that supplied by separately class A power supply board.
IWISTAO Blog is the official platform of IWISTAO HIFI MINIMART, dedicated to high-fidelity audio and DIY electronics. We focus on tube amplifiers, output and power transformers, speaker enclosures, and Bluetooth audio technologies, including HiFi Bluetooth speakers, headphones, and tube-based acoustic systems. The blog shares product insights, technical knowledge, and practical guides for audiophiles and audio builders worldwide.