Valves and Tubes selected, matched and rigorously tested by Mike Hill Services.  The Elite Valve Range:
 ECC81-ECC82-ECC83-EL34-6L6-5881-EL84-6V6-5AR4/GZ34-Solid State Rectifier.

For over 40 years Mike Hill has been purchasing valves from top manufacturers.  The valves he hand selected were used in designing some of the most popular guitar amplifiers, such as the Marshall Master Volume.  When mike was working at Marshall Amplification, he would purchase over 200,000 valves a year.

Every valve we receive is tested and matched, using our bespoke purpose built rigs which not only test the quality of a valve, but also burns them in using real amplifier situation.  Any valve not meeting our high standards are rejected, and sent back to the manufacturer.  The Elite Valve Range are use by some of the best guitarists in the world.  
Brian May, Tony Iommi, AC/DC and Jonny Buckland (coldplay) plus many more use amps serviced by us, and fitted with our valves.