$403.74 Buy It Now or Best Offer
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Seller Store tubemuseumusa
(6083) 100.0%,
Location: Bradenton, Florida
Ships to: US,
Item: 296335431798
Restocking Fee:No
Return shipping will be paid by:Seller
All returns accepted:Returns Accepted
Item must be returned within:30 Days
Refund will be given as:Money back or replacement (buyer’s choice)
Siemens:Siemens
Type:NOS Tube
NOS:NOS AMPLITREX TESTED
TUBE NUMBER:CCa
CCa:CCa
MPN:CCa
Country/Region of Manufacture:Germany
TubeMuseum RATED THE “BEST SOUNDING” CCa EVER MADE FACT!: 100% TESTING NOS SIEMENS CCa are EXTINCT!EXTREMELY RARE TO FIND, IN FACT IMPOSSIBLE TO SOURCE, EXCEPT FROM THE TUBE MUSEUM NEW YORK! NOS SIEMENS CCA (E88CC 6922) GRAY-SHIELD HOLY-GRAIL PLATINUM LOW-NOISE SINGLE TUBE – RATED “BEST SOUNDING” # 1 CCa EVER MADE with Siemens Halske codes. NOS comes with Authentic Siemens replacement box, the ACTUAL identical tube with gray-plates in the pictures. ACTUAL PICTURES OF 1960s CODE: ACTUAL PICTURE OF SINGLE TUBE YOU WILL RECEIVE, TESTING: tube 1: 15.0mA and 13,000 mA/V 100% 15.0mA and 12,500 mA/V 100% NOS TUBES TEST AVG. 12,0mA and 11,000 mA/V for this early year. The following ubiquitous quote from the TubeMuseum.org Famous Review of the Best Top 6922 Audio tubes ever. 1) E88CC or CCa Siemens & Halske 1950’s to 1960’s D getter or 1960’s O getter halo “Rarest and most sought after CCa, has “Gray NOT silver shield” between plates and “Frame-Grid” construction. Most realistic sounding holographic soundstage, pure seductive sonic joy, Complex symphonic images emerge effortlessly” 2) E88CC or CCa VALVO Heerlen Holland 1960’s “Real sonic holography, best-musicallity sounding, compellingly realistic, extremely incredible detail, warmth, and clarity – all at the same time, rated up there with the Siemens CCa, classified audiophile-extreme rarity, almost never seen or available in real NOS, especially in the most desirable D getter ring 3) E88CC or CCa Telefunken West Germany 1960’s “Excellent neutral holographic soundstage, vast vocabulary of tone Establishes remarkable layers of harmonics, very rare” 4) E88CC or CCa Siemens & Halske A-FRAME construction late 1960’s to early 1970’s “Beautiful open air holographic images, low microphonic tube construction, rare. Sonically Brilliant, Pristine, Musical & Therapeutic” 5) E88CC or CCa LORENZ West Germany early 1960’s “Beautiful open air holographic images, very rare” 6) E88CC or CCa Siemens SINGLE STEM 1980’s “…Unfortunately, most of these 1980’s tubes often loose vacuum prematurely, and the heads turn white, as they quickly loose their vacuum – not recommended! Stay-Away!” “Audio tubes in general need to settle-in to the new environment, and get better with ‘burn-in’. With the Siemens Halske E88CC you are going to hear ALL the frequencies passing through your system, the more sensitive the tube the more you will hear. You are using AUDIO GRADE tubes with the Siemens E88CC, which have a sonic-signature that reproduces not only the ‘odd’ harmonics (1-3-5 etc.) but also the ‘even’ harmonics (2-4-6 etc.) The new tubes made today in China and Russia only reproduce ‘odd’ harmonics – that’s why everyone upgrades to a vintage made tube made decades ago when these rare ‘earth-metals’ were available in the inner construction of the vintage tube – now these metals are too expensive to use and today’s tube-makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music. …” The Tube Museum New York …”You are using AUDIO GRADE tubes with the Siemens E88CC, which have a sonic-signature that reproduces not only the ‘odd’ harmonics (1-3-5 etc.) but also the ‘even’ harmonics (2-4-6 etc.) The new tubes made today in China and Russia only reproduce ‘odd’ harmonics – that’s why everyone upgrades to a vintage made tube made decades ago when these rare ‘earth-metals’ were available in the inner construction of the vintage tube – now these metals are too expensive to use and today’s tube-makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music.”… The Tube Museum New York…”The harmonics of an amplifier can be revealed in the distortion measurements. There are two types of harmonics; Even order harmonics and Odd order harmonics. Musical instruments naturally create lots of Even order harmonics. So do single-ended amplifiers BTW. However, I can’t think of too many things in nature that create sound with Odd Order Harmonics, except for solid state and tube push pull amplifiers! This is why you don’t get an organic sound from these types of amplifiers, and why everyone is so gaga over Single ended designs. This works by simply playing a single tone at 1kHz and measuring the echo! You can see that the first harmonic (A) is at 3kHz – an ODD number. The next (B) is at 5kHz and the third (C) is at 7kHz. This is what an ODD Order Harmonic signature looks like. Notice there is no even order content whatsoever. Also of interest is the average noise floor seen between the test signal at 1KHz and 20kHz is about -110dB. (larger numbers are better). Considered very good this noise level is brought to you by a Balanced XLR solid state push pull power amplifier.”… The new tubes made today in China and Russia only reproduce ‘odd’ harmonics – that’s why everyone upgrades to a vintage made tube made decades ago when these rare ‘earth-metals’ were available in the inner construction of the vintage tube THE “TOTAL SOLUTION” Siemens Halske E88CC 6922 for proper “odd” and “even” harmonics reproduction FOR PROFESSIONAL USE ONLY Low-Noise Tested Microphonic Free No H-to-K Leakage (Heater-to-Cathode) No leaks (0) zero! TESTED IN THE “FIXED-BIAS” MODE most similar to Hickok settings Actual tubes were tested on the State-of-the-Art AMPLITREX AT-1000 Electron Tube Test System CERTIFIED ULTRA-LOW-NOISE NON-MICROPHONIC SPECIMEN 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 We do not low declare 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. 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 CONFIRMATIONNOTICE: All text & images © 2002-2024 Copyright © of The Tube Museum New York ©All Rights Reserved By entering this site you are agreeing to be bound by the terms of this agreement. All photographs and text appearing in the Tube Museum New York (TubeMuseumUSA) site(s) are the exclusive property of The Tube Museum New York © (except where stated otherwise) and are protected under international copyright laws and treaties. They are made available for your personal viewing enjoyment only. No images or unique text are within the Public Domain. The photographs and text may not be copied, reproduced, redistributed, manipulated, projected, used, or altered in any way without the prior express written permission of The Tube Museum New York ©. The unauthorized reproduction or distribution of a copyrighted work, pictures, and text is illegal. 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