Products: Cryo Valves

DEEP CYROGENTIC TREATMENT The process involves taking the vacuum tubes and freezing them down to -312 f and soaking these for a minimum of 12 hours. Then the temp is held at this low level for 24 hours. The vacuum tubes are then slowly brought up to normal levels over the next 12 hours. Metals respond very well to deep cryogenic process. The reasons are as follows. During the cooling or solidification phase of the manufacturing process, molecules are trapped in a haphazard pattern. This is down to stress caused in the bending and welding of the anode plate material.. This random placement causes obstacles for electrons and when encountered this interference can cause noise, slow down electron flow and sound deteriation affecting the quality of the sound of the vacuum tube. At very cold temperatures (below -312°F), the molecules will align in a more uniform, compact structure through the removal of kinetic energy. When the material is returned to ambient temperature, this new uniform, compact pattern is maintained, Thus changing the structure of the nickel permanently. This process makes a permanent change and the benefits do not deteriorate over time or upon return to operating temperature, it changes the whole way the vacuum tube performs. The biggest benefits I have found has been a dramatic improvement in dymanic range. Bass response has been clearer with reduction in microphonics. The really most starling fact as been how the valve operates under saturated and overdriven conditions. This has made some of the more basic Fender amps sound fuller and warmer. GENERAL ELECTRIC CRYO VALVES WATFORD VALVES has Cryogenically treated some of the more popular sounding NOS General Electric valves. This process makes a permanent change and the benefits do not deteriorate over time or upon return to operating temperature, it changes the whole way the vacuum tube performs. The biggest benefits I have found has been a dramatic improvement in dymanic range. Bass response has been clearer with reduction in microphonics.The soundstage is bigger with more detail with a big reduction in the noise floor. The really most starling fact has been how the valve operates under saturated and overdriven conditions in guitar amplifiers. The distortion is smoother with less hardness and is musically pleasing to the ear.

Click below to read our rave reviews on Cryo treated valves from the following magazines.
May 2006 p123 Article by Nick Guppy Harma Cryogenically Treated Valves	April 2006 p77 Article by Tim Slater Harma Vacuum Tubes
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Name	Manufacturer	Comment	Stock	Price	Photo	Order
12BH7A/GE-CRYO	GENERAL ELECTRIC CRYO VALVES	Special Cryo Treated Version of the Original U.S.A made 12BH7A which was used by many American high ...	In stock	£32.00	Image coming soon
12DW7/7247/ECC832/GE-CRYO	GENERAL ELECTRIC CRYO VALVES	Special Cryo treated version of the Premium Industrial specification 7247/12DW7 G.E valve.The G.E ...	In stock	£32.00
6072A/G.E SELECT MIC CRYO	GENERAL ELECTRIC CRYO VALVES	Military grade 6072A/12AY7 JAN specification. This valve is the best sounding one out there. ...	Sold Out	£45.00
6C10/G.E CRYO	GENERAL ELECTRIC CRYO VALVES	This rare triple triode that finds itself used in a small number of Fender amplifiers. This valve ...	In stock	£35.00	Image coming soon
6C4/EC90/G.E-CRYO	GENERAL ELECTRIC CRYO VALVES	Special Cryo treated version of thel G.E item that was used by Conrad Jonson and many high end ...	In stock	£15.00	Image coming soon
ECC83/12AX7/G.E 80S CRYO	GENERAL ELECTRIC CRYO VALVES	The General Electric ECC83/12AX7A is the valve that is the trademark sound of all those Classic 70s ...	In stock	£50.00

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