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CRYOGENICALLY TREATED VACUUM TUBES for the audiophile.
Cryogenic treatment is a process where a product (VACUUM TUBES)is tempered in a deep freeze process(-300F) for 48 hrs. This process produces a permanent change in the metals inside this product making it stronger and longer lasting. Tools, instruments, knives, razor blades, machinery parts have been Cryo Treated for many years.Why do this to tubes?Tubes are mostly metal inside so Cryo treating tubes has the following benefits: permanent change in the metals at the molecular level(more uniform grain structure of metals), longer lasting, tightens internal parts of the tube allowing for more efficient operation. and superior conductivity!

SONIC IMPROVEMENTS FROM "CRYO TREATED" TUBES:

LOWER NOISE FLOOR,lower distortion, extended frequency response at the extremes, greately increased resolution and transparency. You will hear information from the recording you barely, or never heard before, especially at the back of the stage! Bass response is greatly improved, treble is sweeter but more extended. Cryo treated tubes just sound much better and more effortless than a non-treated tube!!! THIS CATALOG SECTION
CONTAINS ALL THE ULTRA PREMIUM CRYO TREATED TUBES WE CURRENTLY HAVE, BOTH SMALL SIGNAL AND POWER.THIS IS THE MOST COST EFFECTIVE WAY TO TWEAK YOUR SYSTEM!!

CRYOGENICALLY TREATED VACUUM TUBES for the audiophile.
 

12AT7 CRYO GRADEUSD38.95
12AT7 CRYO GRADE 12AT7RFTCRYO 
Very ruggedly constructed vacuum tube, electron tube from RFT E. Germany, supplied with RFT logo. Very high quality ...
Quantity
Balanced triode service
 

12AT7 JAN CRYO  Matched PR.USD54.95
12AT7 JAN CRYO Matched PR. 12AT7JAN CRYO 
Vacuum tubes, audio tubes,selected and matched pairs JAN 12AT7, low noise and micro phonics. We have ECG JAN ...
Quantity
Balanced triode service
 

12AT7/CV4024 Mullard CRYOUSD47.95
12AT7/CV4024 Mullard CRYO 12AT7/CV4024CRYO 
12AT7 British Military designation(CV4024)vacuum tube, electron tube, valve. Same as ECC81. No need to talk about Mullard quality. ...
Quantity
 

12AU7/RT Cryo USD48.99
12AU7/RT Cryo  12AU7RTCRYO 
A superb vacuum tube and electron tube by the French manufacturer Radiotechnique. Very clear and transparent sound.Smooth. ...
Quantity
Balanced triode service
 

12AX7 Tung-Sol Cryo GradeUSD35.95
12AX7 Tung-Sol Cryo Grade 12AX7TSCryo 
WE MADE A GREAT TUBE EVEN BETTER! Ultra premium CRYOGENICALLY TREATED GRADE! The new tube from the Reflektor ...
Quantity
 

12AX7/ECC83 Ei  CRYO AMP12AX7/ECC83 Ei CRYO AMP 12AX7/ECC83Eicryoamp 
We have a limited supply of Ei Yugo ECC83/12AX7. The latest version is shipping with gray oxide coated ...

12AX7/ECC83 Genelex CRYOUSD54.99
12AX7/ECC83 Genelex CRYO 12AX7GLCRYO 
Original Genalex Gold Lion ECC83/B759 tubes are considered among the best 12AX7 types ever made. They are hard ...
Quantity
 

12AX7/ECC83 Mullard cryoUSD36.99
12AX7/ECC83 Mullard cryo 12AX7Mcryo 
The new Mullard reissue cryo grade tubes with long plate. The Russians did an excellent job of recreating ...
Quantity
 

12AX7LPCRYOUSD26.95
12AX7LPCRYO 12AX7LPCRYO 
Vacuum tube for audio and guitar by Sovtek, Russia. The excellent new design "long plate" version, patterned after ...
Quantity
DISCOUNT
 

12BH7  CRYO GRADEUSD34.95
12BH7 CRYO GRADE 12BH7ACRYO 
We supply various NOS brands from our stock such as GE, Raytheon, Sylvania and others.RCA available at other ...
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USD24.95
12BH7A vacuum tube EH Cryo 12BH7A CRYOEH 
Electro-Harmonix 12BH7A CRYO treated grade, low noise and microphonics selected. An excellent sounding and very consistent quality ...
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211 tubes CRYO matched pairUSD159.90
211 tubes CRYO matched pair 211MPCRYO 
Vacuum tubes power output 211 in factory matched pairs mfg. by Shuguang.CRYOGENICALLY TREATED for the utmost in sonic ...
Quantity
 

2A3C vacuum tube Psvane CRYOUSD169.90
2A3C vacuum tube Psvane CRYO 2A3C 
2A3C new version from Psvane Cryogenically enhanced for the utmost in tone, longer life and lower noise. Supplied ...
Quantity
 

300B-98B Cryo matched pairSpecial Offer!   USD269.90

300B-98B Cryo matched pair P300B-98BMPCryo mesh plate 
CRYOGENICALLY TREATED FOR A TREMENDOUS SONIC IMPROVEMENT AND LONGER LIFE! We have stock of the latest ultra ...
Quantity
 

5687WB CRYO JAN GE NOS tubeUSD24.95
5687WB CRYO JAN GE NOS tube 5687WB JAN GE 
5687WB vacuum tube JAN GE CRYO treated for the utmost in sonics, longer life and lower noise. Black ...
Quantity
 

5814 Jan cryoUSD26.95
5814 Jan cryo 12AU7/5814WGCRYO 
CRYOGENICALLY TREATED VARIOUS NOS 5814 12AU7 EQUIVALENT. All cryogenically treated for the best sonic performance, selected by ...
Quantity
Balanced triode service
 

5AR4 rectifier tube, GZ34 cryoUSD28.95
5AR4 rectifier tube, GZ34 cryo 5AR4/GZ34CRYO 
CRYOGENICALLY TREATED. High quality tested and selected vacuum rectifier tube from China. American and European types are all ...
Quantity
Quantity discount
 

5AR4/GZ34 JJCRYOUSD29.95
5AR4/GZ34 JJCRYO 5AR4/GZ34JJCRYO 
CRYOGENICALLY TREATED.Ruggedly constructed JJ GZ34 equivalent to 5AR4 rectifier 5V tube.
Quantity
Quantity discount
 

USD31.99
6072A/12AY7 CRYO studio grade 6072A EH CRYO 
6072A/12AY7 vacuum tube EH CRYO Studio Grade with chrome plated pins. Enhanced Cryogenic grade for the utmost in ...
Quantity
 

6072A/12AY7 Cryo studio gradeUSD36.95
6072A/12AY7 Cryo studio grade 12AY7A/6072A EH gold cryo 
CRYO TREATED STUDIO/LABORATORY GRADE VACUUM TUBE.6072A is the full equivalent of 12AY7A. This Russian tube is a very ...
Quantity
 

6550 Tungsol reissue CRYOUSD102.99
6550 Tungsol reissue CRYO P6550Tsol 
CRYOGENICALLY TREATED MATCHED PAIRS.Copy of the original type 3 Tung-Sol 6550 made in the 1960ís. Triple getter, ...
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6550/KT88/KT120 Tung-Sol CRYOUSD149.90
6550/KT88/KT120 Tung-Sol CRYO P6550KT120CRYO 
In September of 1950 Tung-Sol introduced the 5881, an uprated and industrial version of the 6L6GA with a ...
Quantity
Quad matching service
 

6550C Svetlana CRYO matched pr.USD99.90
6550C Svetlana CRYO matched pr. P6550CSVCryo 
CRYOGENICALLY TREATED GRADE.Dramatic improvement in sound quality over the regular non-treated grade! We have stock of the well ...
Quantity
 

6922 EH CRYO gold pin matched pr.USD69.99
6922 EH CRYO gold pin matched pr. E88CC/6922EHCRYOMPGP 
6922 EH gold pin CRYO Grade. Equivalent to E88CC/ECC88/6DJ8. These have gold plate pins for lower contact resistence. ...
Quantity
Balanced triodes service
 

6922 EH CRYO gold pin matched pr.USD79.99
6922 EH CRYO gold pin matched pr. E88CC/6922EHCRYOMPHGGP 
6922 EH gold pin CRYO Grade w/ extra hi-gain selection for phono stages. Equivalent to E88CC/ECC88/6DJ8. These have ...
Quantity
Balanced triodes service
 

6922 EH Cryo Matched PairUSD59.99
6922 EH Cryo Matched Pair E88CC/6922EHCRYOMP 
LOW NOISE AND MICRPHONICS TESTED CLOSELY MATCHED TRIODES.6922 from Sovtek/Electro-Harmonix that have been Cryo treated. The EH have ...
Quantity
Fully balanced for gain and gm
 

6922 EH Cryo single tubeUSD29.99
6922 EH Cryo single tube E88CC/6922EHCRYO 
6922 from Sovtek/Electro-Harmonix that have been Cryo treated. The EH are an improved version over the regular Sovtek.These ...
Quantity
Balanced triodes
 

6922 EH Cryo super hi-gain phono MPUSD69.99
6922 EH Cryo super hi-gain phono MP E88CC/6922EHCRYOMPHG 
SUPER HI-GAIN PHONO GRADE. 6922 from Sovtek/Electro-Harmonix that have been Cryo treated. The EH have been improved over ...
Quantity
Balanced triodes service
 

6922 Genelex CRYO MP6922 Genelex CRYO MP E88CC/6922GLCRYOMP 
The Genelex Gold Lion 6922/E88CC is a premium grade selected twin triode small signal tube that is suitable ...

6922 Russian  MP SLNM CRYO6922 Russian MP SLNM CRYO E88CC/6H23n-EB  
CRYOGENICALLY TREATED! True Military grade Russian tube(6H23n-EB). Long life rated, chrome plated pins. SUPER LOW NOISE &MICRO GRADE FOR ...

6922 Russian cryo hg phono bal6922 Russian cryo hg phono bal E88CC/6H23n-EBahgphbal 
CRYOGENICALLY TREATED! HIGH GAIN PHONO SELECTION WITH BALANCED TRIODE SECTIONS INCLUDED FOR THE UTMOST IN IMAGING AND STAGE. True ...

6922 Russian MP SLNM CRYOBal6922 Russian MP SLNM CRYOBal E88CC/6H23n-EB bal triodes 
CRYOGENICALLY TREATED! WITH BALANCED TRIODE SECTIONS INCLUDED FOR THE UTMOST IN IMAGING AND STAGE. True Military grade Russian tube(6H23n-EB). ...

USD21.95
6BM8/ECL82 SVETLANA CRYO 6BM8SVCRYO 
We have stock of NOS older production 6BM8/ECL82 vacuum tubes by Svetlana. These have the Russian designation ...
Quantity
 

6BQ5/EL84 Ei  CRYO GRADE6BQ5/EL84 Ei CRYO GRADE EL84YCRYO 
Excellent quality small power pentode vacuum tube from Ei Yugoslavia. This is a copy of the European Philips ...

6BQ5/EL84 JJ Cryo matched pairUSD32.99
6BQ5/EL84 JJ Cryo matched pair EL84/6BQ5 JJ CRYO 
EL84/6BQ5 JJ matched pair. Order (2) for a matched quad. These are a very high quality reliable tube ...
Quantity
 

6FQ7 RCA Clear Top CRYO6FQ7 RCA Clear Top CRYO 6FQ7CT 
We have the RCA Clear top type vacuum tubes in stock, manufactured in Mexico and Brazil. There is ...

6FQ7/6CG7 CRYO NOSUSD26.95
6FQ7/6CG7 CRYO NOS 6FQ7cryo 
Assorted US and Japanese NOS 6FQ7 CRYOGENICALLY TREATED for the utmost in performance and tone. Selected for noise ...
Quantity
 

6GK5 Mullard CRYO matched pr.USD49.95
6GK5 Mullard CRYO matched pr. 6GK5MCRYO 
We have good inventory of the best 6GK5 vacuum tube type ever made. We supply low noise ...
Quantity
 

6H30Pi-EB CRYO GRADEUSD42.99
6H30Pi-EB CRYO GRADE 6H30n-EBCRYO 
We have stock of the super linear dual triode used by BAT and others. This is not a ...
Quantity
 

6L6GC coke bottle Cryo MPUSD44.95
6L6GC coke bottle Cryo MP P6L6GC coke bottle cryo 
CRYOGENICALLY TREATED FOR A BETTER TONE.Coke Bottle glass. Really Cool "Retro" look. Higher power, great for ...
Quantity
Rate for early or clean option.
 

6L6GC JJ cryo matched pairUSD59.99
6L6GC JJ cryo matched pair P6L6GCcryoJJMP 
CRYOGENICALLY TREATED 6L6GC JJ. Full, rich, warm sound with plenty of dynamics and punch for your hi-fi and ...
Quantity
 

6L6GC Russia 6n3CE small baseUSD44.99
6L6GC Russia 6n3CE small base 6L6GCSBCRYO 
CRYOGENICALLY TREATED GRADE FOR THE UTMOST IN SONICS AND SUPERIOR TONE! NOS Russian surplus stock vacuum tube, electron ...
Quantity
SPECIAL RATINGS AVAILABLE
 

6L6GCSTR TAD matched selectedUSD27.95
6L6GCSTR TAD matched selected 6L6GCSTRTAD 
Tube amp doctor has processed these for quality control. They are made specially for them with a ribbed ...
Quantity
 

6N1P-EB cryo matched pairUSD46.99
6N1P-EB cryo matched pair 6N1P-EBCryo matched pr. 
We have stock of the 6N1P-EB(Military grade) old stock from Russian surplus. Sounds way better than the currently ...
Quantity
 

6SL7 Jan Sylvania CRYOUSD49.95
6SL7 Jan Sylvania CRYO 6SL7SYL 
CRYOGENICALLY TREATED JAN SYLVANIA 6SL7GT in original military boxes 1950's.
Quantity
Phono grade is available.
 

6SN7GT CRYO Amp Grade MPUSD49.95
6SN7GT CRYO Amp Grade MP 6SNGT(B)CRYOAG 
MATCHED PAIR. AMPLIFIER CRYOGENICALLY TREATED GRADE:USE THIS IN YOUR AMPLIFIER DRIVER POSITION. Vacuum tube, octal tube, 6SN7GTbrown ...
Quantity
 

6SN7GT Metal base cryo specialUSD59.99
6SN7GT Metal base cryo special 6SN7GT/6N8PC 
CRYOGENICALLY TREATED.This is a special quality nos tube from domestic Chinese Military stock. The sound of these is ...
Quantity
 

6SN7GT(B) CRYO LINE GRADEUSD54.95
6SN7GT(B) CRYO LINE GRADE 6SN7GT(B)CRYOLG 
LINE GRADE:CRYOGENICALLY TREATED. Vacuum tube, octal tube, 6SN7GT BROWN BASE, manufactured in China. Very high quality construction and ...
Quantity
 

6SN7GTB Tungsol cryo matched pr.USD69.95
6SN7GTB Tungsol cryo matched pr. 6SN7GTBTsolcryo 
We have received stock of CRYOGENICALLY TREATED 6SN7GTB brown base Tungsol Russian reissue octal vacuum tubes. These are ...
Quantity
 

7189 cryo Russian military MPUSD59.99
7189 cryo Russian military MP EL84MCryo 
CRYOGENICALLY TREATED!Russian Military 6n14n-EB(EV) which is a ruggedized ULTRA PREMIUM CRYO TREATED GRADE!7189 equivalent able to operate at ...
Quantity
Quad matching
 

807 tubes Farenti Brimar CRYO MPSpecial Offer!   USD76.99

807 tubes Farenti Brimar CRYO MP 807FCRYO 
A British made valve by Farenti, a Division of Brimar.British Military "CV124" = 807. CRYOGENICALLY treated for the ...
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845B CRYO Matched pairSpecial Offer!   USD269.90

845B CRYO Matched pair P845BCRYO 
ULTRA PREMIUM CRYOGENICALLY TREATED GRADE!The 845B is an improved version over the standard type. It can sound richer ...
Quantity
 

ECC803S JJ cryoUSD28.95
ECC803S JJ cryo 12AX7/ECC803S JJ cryo 
CRYOGENICALLY TREATED long plate 12AX7 version(ECC803S=ECC83). This version has a tighter sound, more detailed, slightly leaner than the ...
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ECC803S JJ cryo combo gradeUSD32.95
ECC803S JJ cryo combo grade 12AX7/ECC803SJJ COMBO 
CRYOGENICALLY TREATED long plate 12AX7 version(ECC803S=ECC83). This version has a tighter sound, more detailed, slightly leaner than the ...
Quantity
 

ECC803S/12AX7 Tungsol goldUSD39.95
ECC803S/12AX7 Tungsol gold 12ax7/ECC803S gold pin Cryo 
WE MADE A GREAT TUBE EVEN BETTER! Ultra premium CRYOGENICALLY TREATED GRADE GOLD PLATED PINS FOR LOWER CONTACT ...
Quantity
 

ECC83S JJ cryoUSD27.95
ECC83S JJ cryo 12AX7/ECC83SJJcryo 
Full, rich and warm sound, transparent with plenty of dynamics and punch. CRYOGENICALLY TREATED for the utmost in ...
Quantity
 

ECC83S JJCOMBO GRADEUSD29.99
ECC83S JJCOMBO GRADE 12AX7/ECC83SJJcryoCOMBO 
EXTRA SELECTED FOR LOW MICROPHONICS FOR COMBO AND PHONO AMPLIFIERS!Full, rich and warm sound, transparent with plenty of ...
Quantity
 

EF86 Svetlana CRYO GRADEUSD23.95
EF86 Svetlana CRYO GRADE EF86SVCRYO 
Earlier production EF86 made by Svetlana , Russia, with Russian designator, factory logo. WITH CRYO TREATMENT IS ...
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EL34 Mullard cryoUSD66.99
EL34 Mullard cryo PEL34Mcryo 
We now have CRYOGENICALLY TREATED Mullard EL34 Reissue made in Russia. The tone is clear, smooth and warm ...
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EL34 Valve Art CRYO matched pr.USD62.99
EL34 Valve Art CRYO matched pr. PEL34VACRYO 
CRYOGENICALLY TREATED MATCHED PAIR. Highest quality vacuum tube, power tubes from Valve Art, China.IN STOCK!!! This high ...
Quantity
 

EL34/E34L JJ cryo matched pairUSD59.99
EL34/E34L JJ cryo matched pair PEL34JJCRYO 
EL34 type from JJ Electronik from the Slovak Republic. Plenty of power handling capacity and punch, with moderate ...
Quantity
 

EL84/6BQ5 JJ Cryo matched pr.USD52.99
EL84/6BQ5 JJ Cryo matched pr. EL84JJcryomp 
Cryogenically treated JJ Electronic EL84/6BQ5 in matched pairs. These tubes are warm, clear with plenty of dynamic punch ...
Quantity
 

KT66 CRYO Valve ArtUSD79.99
KT66 CRYO Valve Art P6L6/KT66VACRYO 
We just received stock of the GEC copy by VALVE ART w/ brown base made in China.
Quantity
Quad matching service
 

USD59.99
KT77 JJ Electronik (EL34)cryo EL34KT77JJcryo 
The KT77 was created by MO-Valve in England in the late 1950's. JJ Electronik has brought back a ...
Quantity
 

KT88 Valve Art Cryo matched pr.USD99.90
KT88 Valve Art Cryo matched pr. P6550/KT88VAcryo 
CRYOGENICALLY TREATED MATCHEDPAIR.THE DIFFERENCE WHEN THIS KT88 IS CRYO TREATED IS TREMENDOUS! IT TAKES AN ALREADY GREAT ...
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TUBEMAN.COM
6266 Branchwood Drive,  Lake Worth,   Florida,  33467   United States of America
Tel: 561-434-3799   Fax: 561-434-3894