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Cascade of Marshall Tubes by Yukio Miyamoto

£ 49.00

Marshall Tubes by Yukio Miyamoto

It is generally received wisdom that thermionic tubes or valves deliver higher quality amplification than transistors - the sound warmer, more harmonious and natural. We have not spoken to a musician for example who thinks otherwise.

The concept of amplification using thermionic diodes, triodes, tetrodes and pentodes stemmed from the observation by Edison that the filaments in incandescent light bulbs always failed at the cathode end of the filament. In considering why this was so Englishman John Ambrose Fleming, previously an employee of Edison, conceived the thermionic diode and how this could be applied to amplifying signals in cables used for long distance telecommunications.

Until the 1960s and the ongoing development of transistors, that did a similar job more efficiently and more cheaply than valves, the World's largest valve manufacturer was Mullard in Blackburn Lancs. In 1970 to mark Mullard's 50th anniversary the company had a rose developed and bred by Sam McGredy. All employees received a Mullard Jubilee Electron rose bush.

Our t-shirts are unique for being wholly made with CoolMax freshFX. CoolMax is a patented fibre designed to wick perspiration and accelerate moisture evaporation, keeping wearers cooler and drier. This wicking feature of the fabric is made possible by micro channels engineered into the profile of and surface of the fibre. These channels are cleverly dimensioned to exploit the surface tension and capillary action of water. Being physical properties of the fibre, these channels endure and do not significantly diminish with wear or washing.

Antimicrobial (freshFX) treatment stops the propagation of odour producing bacteria. This is achieved by embedding silver salt crystals into the structure of the fibre. FreshFX treatment like the wicking is permanent and does not leach out with everyday use. These characteristics ensure the shirts remain cool, dry and odour free regardless of what you might do in them. Performance of the fabric is guaranteed through a certified and monitored manufacturing process.