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Products > Cryo Valves
Watford Valves was the first Company in the World to offer a cryogenically treated valve brand range showing huge commitment to the proven scientific cryogenic process.
The Harma Diamond deep cryogenically treated valve range offers the musician and audiophile valves which are not only specially selected and tested, but are cryogenically treated for the ultimate performance. We also offer a full range of cryogenically treated valves made by the great factories of the past, such as Mullard, Telefunken, Philips as well as modern brands such as Groove Tubes, Tube Amp Doctor, JJ Electronic (formally Tesla), Electro Harmonix and Sovtek. So whatever is your preferred make Watford Valves will have a cryogenically treated version in stock.
What are the benefits of using cryogenically treated Valves?
The cryogenic process offers permanent change to the metals microstructure. The reduction in electronic noise improves the valves noise floor leading to lower microphonics. Until now clear note definition, musical complexity and rich harmonic content was only attainable by using rare and expensive new old stock classics.
Many guitarists have found the dramatic effect cryogenic treatment has on the way the valve performs not only in clean applications but also when overdriven. The cryogenic process removes the harshness from the valves tone and imaging has more focus and bite. It has a warmer sound which is pleasing to listen to, providing a clear and musical distortion. In short, many musicians, engineers and audiophiles have found that by using cryogenically treated valves it is a proven way of obtaining NOS sound quality with a great difference, an affordable price!
We offer a full range of cryogenically treated valves Harma Diamond Cryogenically treated valve range- High quality at an affordable price.
Nick Guppy, amp reviewer for the UK GUITARIST magazine wrote
“Compared to NOS Telefunken, the Harma Cryo ECC83 offered an improvement in gain and high frequency response that noticeably enhanced this amps singing lead voice and lush clean soundsâ€.
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The ECF80/6BL8 Cryo Tungsram is from the renowned Hungarian plant that was one of Europe most ...In stock£16.00
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Buy Now - ECC81/ 12AT7-JJ TESLA CRYOJJ Tesla Cryo Specially Cryo treated JJ ECC81 Cryo is an excellent modern valve that provides low noise and low microphonics. It has ...In stock£20.00
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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 - ECC83/ 12AX7WA-HARMA VINTAGE CRYO BALANCEDHarma Cryo Special Balanced item
This is a specially cryogenically treated version with balanced output from each triode ...In stock£24.00
£22.00Buy Now - ECC83/ ECC83WA-TAD RT008 CRYOTube Amp Doctor Cryo The TAD ECC83 WA is aimed at the Fender market as it provides a clear high end response. TAD has made this valve as an ...In stock£
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Buy Now - ECC83/ 7025-HARMA DR250 CRYOHarma Cryo The Harma 7025 STR DR250 Cryo is a close sounding recreation of the famous USA made 7025 valve. It is the perfect valve ...In stock£24.00
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JJ EZ81 design is based on the original Czech Tesla EZ81 from the mid 1970 ...In stock£24.00
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Original Military grade JAN specification 12AT7WC Philips that has been specially Cryo ...In stock£25.00Buy Now - ECC83-HARMA STR CRYOHarma Cryo The Harma ECC83 STR Cryo has the most neutral and warmest sounding with the Classic vintage tone when compared to all ...In stock£26.00
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 - 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 - ECC83/ 7025-HARMA DR250 CRYO BALANCEDHarma Cryo Special Balanced item
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The JJ 5U4GB rectifier is used in many audio and guitar amplifier circuits and can ...In stock£26.00
Buy Now - EZ81/ 6CA4-HARMA RETRO CRYOHarma Cryo Special Offer
The Harma EZ81 Retro is based on the European design used by Mullard and Philips in the 1960s for ...In stock£30.00
£27.00
Buy Now - ECC83/ 7025WA-TAD RT080-CRYOTube Amp Doctor Cryo The TAD 7025 WA Cryo is a low noise version of the TAD ECC83 WA selected for use in demanding V1 position of high gain ...In stock£
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Buy Now - ECC81/ 12AT7-JJ TESLA CRYO MATCHED PAIRJJ Tesla Cryo Special Matched Pairs
Specially Cryo treated JJ ECC81 Cryo is an excellent modern valve that provides low noise ...In stock£27.00Buy 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 - 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 - 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
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