Historic TubeMuseum, Tuxedo Park, New York Established in 1928 as a premier research facility in Tuxedo Park, New York, that attracted such brilliant and most visionary minds of the twentieth century - Albert Einstein, Werner Heisenberg, James Franck, Niels Bohr and Enrico Fermi to name a few. The Tuxedo Park lab attracted these top-flight scientists who experimented with audio, sound, time measurement, and radar (first klystron tube). Welcome to the ...
TUBEMUSEUM NEW YORK
New York & NEW Florida Office location to better serve you
PRICE IS EACH PLATINUM-GRADE LOW-NOISE TUBE
You don't find Matched mA and mA/V (GM), Mu & Rp ohms singles or a pair like these.
Actual pictures taken right off the test screen offers the proof
6072 are drop in replacements for 12AY7, only much quieter.
These are the cream-of-the-crop of the RCA USA LOW NOISE 6072 TUBES! THE HOLY-GRAIL OF THE RCA 6072-A CLASS OF PROFESSIONAL 6072 AUDIO TUBES - THE RCA "BLACK-PLATE 6072A" and the "A" is a designation for LOW NOISE the Reference-Standard of the 6072! PRICE IS FOR ONE BALANCED & MATCHED TUBE, below are just a few applications for these tubes!
Pure & Simple SUPERIOR 12AY7 SUBSTITUTE that can upgrade your present stock 12AY7 application vacuum tube(s) - the 1960's RCA6072 BLACK-PLATE 6072A approaches one step closer to that goal with a sonic upgrade, not possible with new tubes included with your current mic or amplifier
NEW-OLD-STOCK PERFECT TUBE(S) NOW AVAILABLE
PRICE IS EACH TUBE
BID 1 FOR A RARE PERFECT Phenomenal 6072A MATCHED TRIODE TUBE!
phe·nom·e·nal/fəˈnämənəl
Uniquely Matched Plate-Resistance (Rp) & Tube-Gain (Mu) between the triodes!
1960's LOW-NOISE RCA 6072-A = WORLD'S BEST 12AY7 sub
MUSEUM TROPHY-QUALITY WITH
NICELY PRESERVED DELICATE LETTERING
MADE IN USA BY RCA IN THE 1960's and re-certified and relabeled by the RCA Deptford, N.J. SPECIAL PRODUCTS DIVISION for Audio Microphone use
6072-A was RCA's SPECIAL PRODUCTS TUBE
All Actual Pictures - comes in box as displayed in photo in gallery.
PRICE IS EACH TUBE (BID 2 FOR 2 MATCHED TUBES)
Balanced and Matched low-noise 6072-A, These Low-Noise 12AY7 TUBE SUBSTITUTE UPGRADE are one of the most sought-after Made in USA 6072's!
NOS TUBE MUSEUM QUALITY
RCA USA 6072-A
BLACK-PLATES
BALANCED MATCHED TRIODE TUBE
TROPHY-QUALITY AUDIO TUBES
FIFTY (50) YEAR-OLD NEW OLD STOCK
Made in the United States of America
Excellent preamp or microphone tubes, low noise, very smooth extended highs, liquid, superb
6072-A = an UPGRADE 12AY7 substitute = balanced and smooth sounding with liquid performance, recommended!
REAL NOS RCA 6072-A AUDIOPHILE VALVES
BRING SOME SONIC-COLOR INTO YOUR AUDIO SPECTRUM ...
CERTIFIED LOW-NOISE SPECIMENS- Recommended for- AKG C12- Telefunken ELAM 251E- Rode mic (Classic I)- Audio Note L3 phono- Ongaku- AKG C12 1950's- AKG C12 VR- Soundelux U95- Fender 5F6A *- Fender Bassman 1953
- Modified APEX 460- Electro-Harmonix 12AY7 Mic Pre
- sE Electronics Gemini II
- Telefunken 251 - Silvaweld SWC 450 preamp - Peluso P12 mic - Kondo M-1000 and Kondo KSL-M77 - Kondo Kassai Silver amp - Kondo KSL-Kegon Power Amplifier - Avantone cv12 - MXL 9000 Mic - Audio Note L3 phono - Ongaku - AKG C12 1950's - AKG C12 VR - Soundelux U95 - Soundelux E251C - Soundelux ELUX 251 - Electronaut M63 mic preamp 2010 - Pearlman Microphones TM 250 - Lawson mic
Made in USA
RCA 6072-A They don't make tubes as good as these anymore! The BEST 6072 tubes were made 4 or 5 decades ago!
These tubes were made in the USA, identified by the code
Rarest Old Production EAR-CANDY from the 1960's!
Premium Quality 10,000 hour tubes delivering clear, open, fast, quiet musical reproduction
RCA 6072-A balanced and matched liquid smooth sounding with excellent bass, liquid midrange, lowest-noise, & true to life highs
TUBE MUSEUM CERTIFIED
SPECIAL SELECTED TUBE WITH THE HIGHEST AMPLITREX AT1000 TEST RESULTS IN STOCK!
RARE and DESIRED "RCA 6072A", with hauntingly life like sound and a tube that will make you "feel" better, knowing that YOU own the BEST there ever can be, or will ever be!
THESE RCA 6072-A TUBES TEST & SOUND PHENOMENAL!
PRISTINE TROPHY-QUALITY NOS
VOTED THE "BEST" AND "MOST REALISTIC" SOUND REPRODUCTION OF ALL 6072's
TESTS PHENOMENAL with TUBEMUSEUM DIGITAL-PROOF TEST VISUALS!
Ask yourself this question: Why should I buy to from sellers who don't even test or show you the real test results?
IN ADDITION:
These tubes are individually sound-auditioned in our preamp to guarantee perfect performance
Here are the actual test measurements for EACH triode (side) of EACH tube:
* NEW TO TUBES? EVERY 6072 HAS 2 SIDES OR TRIODES. "TRIODE 1" IS FOR YOUR RIGHT STEREO SPEAKER CHANNEL AND "TRIODE 2" IS FOR THE LEFT STEREO CHANNEL SPEAKER. BELOW ARE THE ACTUAL TEST MEASUREMENTS DISPLAYING BOTH "TRIODES" OF EACH TUBE. PERFECTLY MATCHED "MIRROR MATCHED" SIDES ARE "VERY VERY RARE" TO FIND, YOU COULD HAVE TO BUY 50 TO 100 TUBES OR MORE TO FIND PERFECT MATCHED TRIODES IN TRANSCONDUCTANCE (GM, mA/V) .
Why buy to from sellers who don't even test or show you the real test results?
TUBE 1: (AVAILABLE)
1,800/1,700 (104%/100%) mA/V (GM) WOW!
TUBE 2: (AVAILABLE)
1,700/1,700 (100%/100%) mA/V (GM) WOW!
TUBE 3: (AVAILABLE)
1,700/1,700 (100%/100%) mA/V (GM) WOW!
** 1,700mA/V/1,700mA/V = 100% Factory Data Sheet Specification
* 3.0mA/3.0mA = 100% Factory Data Sheet Specification
NO heater to cathode leaks, NO microphonics
NO gas, SUPER QUIET
AMPLITREX DIGITALLY TESTED
TUBE MUSEUM PRIVATE-STOCK SELECTION
THE LAST REMAINING NOS SURVIVORS
RARE NOS TROPHY-QUALITY
Impossible to find in NOS
except from The Tube Museum here!
You will never find such TIGHTLY Balanced & Matched TRIODE tube with such Matching mA/V (Gm) anywhere again!
Trophy Quality Lettering & Performance
We are releasing only a few rare MATCHED High-Test tubes from the Tube Museum for select lucky audiophiles to enjoy. These tubes display Perfect Measurements
ALL TUBE MUSEUM TUBES ARE TESTED IN THE "FIXED-BIAS" MODE
Most vintage tube testers test tubes by using fixed bias. So, if you are trying to compare test results between the AT1000 and other testers, this is the best way. The Tube Museum ALWAYS choose the "fixed bias mode" while testing our tubes. We only test in the "fixed-bias" circuit, this way drift or aging of the tube will not be compensated for, and your tube’s TRUE performance will be displayed on the LCD display, so you KNOW what you are REALLY buying!
Here is the "6072" Amplitrex Set-Up Data Screen in 6-volt settings. The heater is a TRUE 6.3 volts, testing at the correct 90 eP with a mA Specification of the true factory data of 3.0mA, and a GM or mutual-conductance (also known as mA/V) of 1.70mA/V or 1,700 Gm.
There's no fooling around at the Tube Museum with meaningless claims like "tests strong!", "Amazing" or some arbitrary number like "the tube test 82 with a minimum of 75" and no maximum stated! We always give you the test results FACTORY-DATA so you can compare with the real factory data sheets in mA and mA/V, just like the original factory data sheet! (specifications).
TUBE TEST READINGS ON THE AMPLITREX DIGITAL TUBE TEST SYSTEM
* fixed-bias mode like Hickok testers!
PASSED THE AMPLITREX DIGITAL TESTS = NO GAS and NO HEATER-TO-CATHODE LEAKS!
zero (0) Heater-to-Cathode leakage
PICTURES OF ACTUAL TUBES
Tested on Amplitrex AT1000 Digital Tube Test System
Actual tubes were tested on the State-of-the-Art AMPLITREX AT-1000 Electron Tube Test System
TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be.
Terms of Auction
PRICE IS FOR EACH SINGLE TUBE (SELECT 2 FOR THE MATCHED PAIR OF 6072 TUBES)
We do not low declare customs amount and we insure for full value.
International Buyers - Please note: Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer's responsibility. Please check with your country's customs office to determine what these additional costs will be prior to bidding or buying.
International Shipping - items may be subject to customs processing depending on the item's declared value.Sellers set the item's declared value and must comply with customs declaration laws.
- import duties and taxes which buyers must pay.
We do not guarantee that your tester, or your tester's measurements will be the same as the Amplitrex AT-1000. Older testers, different testers, or the same tester may report different test measurements, and may not measure the same tube meaningfully (due to current dependency), accurately (due to calibration difficulties) or consistently (due to internal circuit drift) There is no warranty or returns based on what any other tube tester reports.
THE COST OF ALL USA SHIPPING INCLUDES INSURANCE, TRACKING NUMBER AND DELIVERY CONFIRMATION
THE COST OF ALL USA SHIPPING INCLUDES INSURANCE, TRACKING NUMBER AND DELIVERY CONFIRMATION
No zero (0) status bidders without permission, or we reserve the right to cancel your bid. Buyer is responsible for all import duties at price paid for item(s).
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TUBEMUSEUM NEW YORK
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