One piece of universal prototyping board using high quality FR4 and many PTHs (plated through holes). The board can cater for : 8 big 8-pin sockets( 6SN7, KT88, EL34 etc.); 4 9-pin sockets maximum (12AX7, 6DJ8, 12AU7, EL84 etc.); and 8 7-pin tube sockets(6X4 ,6Z31, EZ90,CV493 etc.)
PCB dimension: 20cm x 15cm. PCB thickness 1.6mm
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