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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.
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- 5881-HARMA CRYOHarma Cryo The Harma 5881 Cryo is the button based Russian military valve is the same valve which powered the Marshall and Mesa ...In stock£36.00
Buy Now - 5881-HARMA MESA BOOGIE 400+ CRYO OUTPUT SETHarma Cryo Special Offer 20% Discount
Here is a special Cryo set for all you owners of the Mesa Boogie 400 plus bass head ...In stock£432.00
£345.60Buy Now
FREE UK
Mainland Delivery - 5881-HARMA MESA SELECT CRYOHarma Cryo Mesa Select for use in Mesa Boogies
Special Offer 15% Discount
The Harma 5881 Cryo is the button based ...In stock£36.00
£30.60Buy Now - 5U4GB-HARMA RETRO CRYOHarma Cryo The Harma Retro Cryo 5U4GB is a specially Cryogenically treated version offering the ultimate in performance.The Harma ...In stock£36.00
Buy Now - 5U4GB-JJ TESLA CRYOJJ Tesla Cryo Special Cryo Treated JJ 5U4GB
The JJ 5U4GB rectifier is used in many audio and guitar amplifier circuits and can ...In stock£26.00
Buy Now - 5Y3GT/ 5Y3S-JJ TESLA CRYOJJ Tesla Cryo Special Cryo Treated JJ 5Y3GT
The JJ 5Y3S is a modern designed rectifier that is a replacement for the classic ...In stock£28.00
Buy Now - 6111WA-PHILIPS CRYOPhilips ECG JAN CRYOOriginal USA made Philips Jan specification 6111WA Military grade super miniature valve that is the highest quality ...In stock£30.00
Buy Now - 6922/ E88CC-HARMA CRYO MATCHED PAIRHarma Cryo Special Matched Pairs
This is a special balanced version with matched triode sections available in matched ...In stock£85.00
Buy Now - 6CG7/ 6FQ7-GENERAL ELECTRIC CRYOGeneral Electric Cryo GE 6CG7/6FQ7 has the classic GE sound stage which is big and open. These are original USA made valves are specially ...In stock£30.00
Buy Now - 6GK5/ 6FQ5-HARMA STR CRYOHarma Cryo These specially treated cryo 6GK5 offer the Conrad Johnson owners the ultimate performance. They provide a more ...In stock£20.00
Buy Now - 6L6GC-HARMA RETRO CRYOHarma Cryo The Harma 6L6GC Retro Cryo is a re issue of the famous Sylvania STR 387 that was produced for Fender in the early ...In stock£34.00
Buy Now - 6L6GC-HARMA RETRO CRYO MESA SELECTHarma Cryo Mesa Select for use in Mesa Boogies
The Harma 6L6GC Retro Cryo Mesa Select is a re issue of the famous Sylvania ...In stock£36.00Buy Now - 6L6GC-JJ TESLA CRYOJJ Tesla Cryo The JJ 6L6GC Cryo is the best sounding version of JJ 6L6GC valve available today. The Cryo treatment enhances the ...In stock£32.00
Buy Now - 6L6GC-SVETLANA WINGED C CRYOSvetlana Winged C Cryo The Original Svetlana Winged C 6L6GC that was designed based on the famous Sylvania STR 387 6L6GC and manufactured in ...In stock£
70.00
£63.00
Buy Now - 6L6GC-SVETLANA WINGED C MESA SELECT AKA MESA 6L6GC STR 454 CRYOSvetlana Winged C Cryo Special Cryo Treated Version
The Mesa 6L6GC STR 454 is the Original Svetlana winged C 6L6GC which Mesa sourced ...In stock£75.00
£67.50
Buy Now - 6N1P VI-HARMA CRYOHarma Cryo The Harma 6N1P VI Cryo is a cryogenically treated special long life, low noise selected version of the 6N1P. The valve ...In stock£22.00
Buy Now - 6N1P VI-HARMA CRYO MATCHED PAIRHarma Cryo Special Matched Pairs
This is a special balanced version with matched triode sections available in matched ...In stock£26.00Buy Now - 6V6GT STR-TAD CRYOTube Amp Doctor Cryo The TAD 6V6GT STR Cryo is a special Cryo treated version of the TAD 6V6GT STR.TAD have based this 6V6GT design on the ...In stock£36.00
Buy Now - 6V6GT-PHILIPS CRYOPhilips ECG JAN CRYOBlack Plate Cryo Version
Special Cryo treated version of the original American Military JAN 6V6GT which are ...In stock£55.00
Buy Now - 6V6GT-PHILIPS CRYO SINGLEPhilips ECG JAN CRYOBlack Plate Cryo Version
Single Valve
Special Cryo treated version of the original American Military JAN ...In stock£55.00Buy Now - 6V6GTS-JJ TESLA CRYOJJ Tesla Cryo The JJ Tesla 6V6GTS Cryo is a specially cryo treated version and is the best sounding version of JJ 6V6GTS valve.The ...In stock£40.00
Buy Now - 7199-PHILIPS CRYOPhilips ECG JAN CRYOVery Limited Stock
These are the real deal 7199 Philips made in the USA for the American military and have been ...In stock£95.00
Buy Now - 8254/ EC1000-MULLARD CRYOMullard Cryo Special Cryo Treated Version
Very special Cryo treated Mullard 8254 EC1000 for Neumann microphones. We have Cryo ...In stock£95.00
Buy Now - ECC81-HARMA STR CRYOHarma Cryo The Harma ECC81 STR CRYO is a specially treated and selected valve for use in critical positions in both audio and ...In stock£26.00
Buy Now - ECC81-HARMA STR CRYO BALANCEDHarma Cryo Special Balanced item
This is a special balanced version with matched triode sections for use in in critical ...In stock£30.00Buy Now
