[A Bakelite]
[C Copper Bakelite]
[B Copper Ceramic]
6N2 or 6N1 6N6 6N11 6922 ECC88 E88CC vacuum tubes were originally used on the machine. After plugging in the adapter, you can use 12AX7 or 12AU7 12AT7 ECC81 ECC82 ECC83 vacuum tubes.
Han-dmade
Material introduction
Outer casing : Bakelite
Top socket: Bakelite, copper plated gold
Bottom pins:copper plated gold
Size introduction
Diameter: 23mm (0.9in)
Total height (including pins): 27mm (1.06in)
Height (excluding pins): 19mm (0.74in)