Yamamoto Sound Craft 4P Tube Socket for 316A

Compatible Tubes

316A, 388A etc.
Mounting hole 35φ Screw spacing 45.2mm
*H" in the dimensional drawing is 15mm.

This socket is for 316A and 388A of Western Electric and others. Use with good heat dissipation.

The original tube socket is made of fluoroplastic machined from fluoroplastic and fixed with a round machined pin. This prevents deterioration of sound quality due to vibration because the vacuum tube is held firmly without rattling. The fluoroplastic also has excellent insulation properties, making it a key component in the construction of vacuum tube amplifiers.

Explanation of materials used

Fluoroplastic: Official name is ethylene tetrafluoride, which has the highest electrical insulation and dielectric constant of any solid. It also has excellent temperature resistance characteristics.

Phosphor bronze: Used as the material for the pins of most tube sockets (except L series). It has high strength, excellent springiness, and maintains stable contact.

Gold plating: Thick gold plating is applied to most socket pins over a non-magnetic base material. (Except for the L series) Magnetic materials are also eliminated from the plating as much as possible.