Yamamoto Sound Craft Siemens 5P tube socket

This is a made-to-order item. Estimated shipping date is approximately 2 business days. Shipping may be delayed depending on manufacturer stock status.

Compatible with old German standard/Siemens 5-pin tube

This product is a tube socket that is compatible with Siemens 5-pin base vacuum tubes, which are the old German standard. Compatible with early European pipes such as Ba pipes and Ca pipes, it has a large layout with a mounting hole diameter of 55 mmφ and screw spacing of 48 mm x 4. It is specially designed to accurately reproduce the base dimensions, which differ from modern standards, and to safely use vintage vacuum tubes.

High retention and low stress structure considering vintage pipes

Older vacuum tubes have a delicate joint between the glass and the base, so it is necessary to minimize the stress when inserting them. This socket employs a structure that securely fixes the pin through round cutting, achieving stable holding power without play. This reduces contact failure and sound quality deterioration due to vibration, while also reducing unnecessary stress on the vacuum tube base.

CompriteExcellent electrical characteristics and sound quality due to machined body

The socket body hasCompriteThe body is carved and molded.Compriteis a high-strength material made of wood as a base material and impregnated with phenolic resin.It has electrical properties comparable to Bakelite, but has superior strength and heat resistance. Another feature is that its solid rigidity suppresses unnecessary resonance and produces a stable and dense tone.

Stable contact with phosphor bronze pin and gold plating treatment

The pin material is phosphor bronze, which has excellent strength and spring properties, and maintains stable contact pressure over a long period of time. Furthermore, by applying a thick gold plating treatment using a non-magnetic base material, contact resistance is reduced and highly reliable contact performance that is resistant to aging is ensured. The configuration, which eliminates magnetic materials as much as possible, also takes into consideration the purity of sound in audio applications.