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4Pin Vacuum tube 300B 811 2A3 274A Ceramic Tube Socket
Model: GZC4-T-G
Can be used for tube:2A3 45 50 27 5Z3 6A3 10 80 83 274A 300A 300B 801 811 VT52 71A
Socket Diameter: 26.5mm
Panel Cutting Hole: 26.8-27mm
Screw Mounting Distance: 36mm
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