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300B,2A3,811 5Z3,572B Silver plated 4pins U4A Ceramic Vacuum Tube socket
specifications︰ Main Characteristics:
Model NO. GZC4-1
Working voltage：500V
Contact resistance：≤0.01Ω
Insulation resistance：≥10,000MΩ
(under normal condition)
Testing voltage：1500V
Total breakaway force：1.5~5kgf
Life time：200
Usage Descriptions︰ For tubes：
U4A
Tube pins:Ф3.2mm(2), Ф4.0mm(2)
Tube pins distribution:Ф16.30mm
300B、2A3、811、45、50、71A、83、5Z3、572B、5U4G、6B4G、274A、866、PX4，etc
Mounting Method:Bottom
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