6J1 Tube Preamp Amplifier Board Pre-amp Headphone Buffer Kits DIY Assortment

Key specifications for the 6J1 vacuum tube DIY-assembled preamp board, ideal for audiophiles to build their own custom high-end preamp. 1x Tube Preamp Board (Unsoldered, Requires DIY Assembly). Use a DC 5.5×2.1mm jack.

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