轉載: Tube Fans Audio Windsor.300B開箱

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On the stairway wall is the remembrance of what once was produced in these buildings presented by this figure of the TESLA telephone worke

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Once inside it feels like time has frozen and one gets transferred back in time to when things where made by hand and skilled craftsmanship. An open flames burning makes the room hot and one has to be aware when moving around. In this room the tube bottoms are produced and married to the tube dome once all the inner parts are connected and fastened.

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A skilled glass technician at work producing tube bottoms. He works from one place of the room quickly moving to the other side all the time. Better watch out for those flames…..

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A tube bottom is beeing heated up before pressing it into form.

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The pressing.

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Chief engineer Marek (on the left) steps in to say hello.

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We now move to the next production room, in fact this picture of the room comes in at an early stage because this is the storage room, also used for QC. On the left hand side is the old tube tester and burn in bench. Hiding away in the right hand corner is a modern computer based tube tester for high precision testing.

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Tube storage.

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The Marconi tube (without socket) is being scrutinized.

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Here´s the vintage tube testing equipment, still used today in testing.

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This is the modern computer based tube tester.

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Tubes waiting for matching.

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Now we move into the next production room. Here the technician is welding the tube to a glass pipe. This pipe is connected to a vacuum pump and also an oil distiller device to create the high vacuum. This is also a heating chamber to heat the tubes under vacuum.

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Tube nr 2.


All set.


This picture shows the hoods slightly closed down.

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These machines are from the TESLA era and where used mainly for research. They are perfect for small tube production scale.

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Oil distiller device for creating the high vacuum that KR is known for.

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This is what remains once the tubes are vacuumed and dislocated.

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On the other side of the room we find the station for producing grids. This is the old machine from the WWII era and is still used for making the grids.

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Grids ready for assembly.

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Now we step further and into the next room where the plates are produced and all internals assembled. Anode plates ready for assembly.