We had developted a New series of Tube sockets. It is very reliable , good contact , Longlife & reasonable price.
It is not a standard structure sockets. It is combined by a supporting Pins + Brillium copper crown spring. It contact resistor is less than 1/2 of Tranditional sockets structure. Free sample is available for Tube amplifiers manufacturer & Componets distributors/Dealers.
Email : sales@tubehifi.com
http://www.tubehifi.com/Tube_sockets.htm