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TUBEMUSEUM NEW YORK


PRICE IS FOR THE BALANCED MATCHED PAIR!

Bid one (1) for a matched pair!


Buyer: frankdefreitas (1130)
US $249.95

New message from: badbusa_2000 (84Blue Star)

Dear Tube Museum,

I had these tubes in for a bit now, all I can say is wow! Next level sound indeed, I won’t go into all the details but boy am I glad I purchased them.

Buyer: badbusa_2000 (84)
US $224.99
Past month

NEW IS NEW IS NEW!

NEVER-USED REAL NEW OLD STOCK in ORIGINAL NUMBERED BOXES!

IMPOSSIBLE TO FIND EXCEPT AT THE MUSEUM!

TUBEMUSEUM NEW YORK

 TUBE MUSEUM QUALITY

TROPHY-QUALITY TUBES!

"CREAM of the CROP"

BEAUTIFUL SUPERB TESTING NEW OLD STOCK


1962 RCA

Made in USA 

LOW NOISE 12BH7A

MATCHED PAIR


NOS RCA 12BH7A 7032 MATCHED PAIR MOTOROLA BRAND TUBES 1962 HIGHEST mA / Gm EVER! - Picture 3 of 10

ALL ARE ACTUAL Pictures of THESE the RCA "STOP-SIGN" series with 

STAPLED-PLATES for detailed sound!


Made in USA in 1962 WITH STOP-SIGN CODES 

& DUAL ELECTROSTATIC SHIELDS

RCA USA MADE - JUST "BRANDED" FOR 

MOTOROLA COMMUNICATIONS DIVISION


   CERTIFIED ULTRA-LOW-NOISE SPECIMENS

TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be.

What I like about these tubes is that they have Matched & Balanced Triodes with Uniquely closely Matched Plate-Resistance (Rp) & matched Tube-Gain (Mu)


RECOMMENDED FOR:

- McIntosh
- VTL
- Manley
- Kora Hermes DAC in place of 12AU7
- Octave M90 mono amps (http://www.octave.de/)
- BLACKSTAR HT-5 (replacing Sovtek)
- Luxman MA-88 amp
- Requisite Audio preamp
- Teletronix LA-2A Compressor/Limiter
- Art Audio Diavolo amp
- Ray Samuels
- Kendrick Solo 7
- Valvet L1
- Audio Note


STAPLES PLATES PROVIDE EXTRA SUPPORT TO ENSURE LOW MICRO-PHONICS 

AND STABILITY AND LONGEVITY


PRECISION TESTED & LIVE AUDITIONED

ON 1962 McIntosh MC-225

AMPLITREX AT1000 TESTED:


tube 1:

HIGH mA & Matched triodes are hard 

sometimes impossible to find!

NOS RCA 12BH7A 7032 MATCHED PAIR MOTOROLA BRAND TUBES 1962 HIGHEST mA / Gm EVER! - Picture 7 of 10

NOS RCA 12BH7A 7032 MATCHED PAIR MOTOROLA BRAND TUBES 1962 HIGHEST mA / Gm EVER! - Picture 8 of 10

15,3mA (133%) & 4,000 mA/V (116%GM) W0W!

11,8mA (102%) & 3,700 mA/V (119%GM) WOW!

tube 2:

12,4mA (107%) & 3,740 mA/V (120%GM) W0W!

11,2mA  (97%) & 3,600 mA/V (116%GM) WOW!

NOS RCA 12BH7A 7032 MATCHED PAIR MOTOROLA BRAND TUBES 1962 HIGHEST mA / Gm EVER! - Picture 10 of 10

NOS RCA 12BH7A 7032 MATCHED PAIR MOTOROLA BRAND TUBES 1962 HIGHEST mA / Gm EVER! - Picture 9 of 10


ZERO (0) HEATER-TO-CATHODE LEAKS!

BALANCED & MATCHED PAIR WITH IDENTICAL CONSTRUCTION!  CLOSE AND TIGHT BETWEEN THE TUBES AND THEIR TRIODES!

EVERY TUBE'S NOS % GIVEN WITH ACTUAL TUBE MUSEUM PROOF!

MOST RCA 12BH7's BEING SOLD ELSEWHERE HAVE A VERY LOW mA (plate emissions)

Don't take foolish chances with Other offers with weak 50% TO 70% EMIS (mA/V) Gm, if lucky!

There is a GANG of tube seller's on eBay with used product that advertise as "STRONG" with meaningless numbers and when you test their tubes they are weak!

Only BUY THE BEST Tube Museum Tubes ... 

NEW IS NEW IS NEW!

NEVER-USED REAL NEW OLD STOCK!


These tubes all have VERY HIGH mA/V which is really important to insure a LONG-LIFE of your 12BH7 tubes! 

Did you know that weak 12BH7 preamp tubes put an unnecessary strain and SHORTEN the LIFE of you other tubes in the circuit?

If you want the "CREAM OF THE CROP" the BEST there can be, this is it.

TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be.


TESTED AT REAL-WORLD POWER LEVELS ON AMPLITREX AT-1000 in Fixed-Bias Mode

Tested on Amplitrex AT1000 Digital Tube Test System

..." * Rp or plate resistance is the second most important parameter as it directly affects the output impedance of the preamp. Circuit designers are looking at Mu primarily, Rp next and we hardly care about Gm at all. Why then do most vendors measure Gm and Gm alone? Because most testers only measure Gm! No commercial tester ever measured Mu either (until the AMPLITREX AT1000 was introduced.) And even the Hickock, treasured for measuring Gm, doesn’t measure it meaningfully (due to current dependency), accurately (due to calibration difficulties) or consistently (due to internal circuit drift).'"...

This tube is known for excellent performance, smooth highs, outstanding 3-D holographic soundstage, lots of open-air, inner detail, and overall perfect resolution and balanced sound.

 


 Terms of Sale

PRICE IS FOR A PAIR! 

Bid one (1) for a matched pair!

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.

Per eBay's terms of service which every eBay account holder must agree to as part of being an eBay member, a bid is a legally binding contract. Please read the Terms & Conditions carefully before bidding. By bidding on this auction, you understand and agree to eBay's terms of service as well as all terms and conditions mentioned here.

Buyer pays all shipping, Item must be in original condition including cosmetic lettering on tubes so handle with white-glove care, un-used with all original boxes, packing material, environmentally safe cornstarch pellets, and shipping box.  All sales are final with NO RETURNS on self installed mic tubes.

All exchanges must be pre-paid and returned in original packing, complete with no sign of wear or abuse, exactly the same condition as it was when you received it. In the event that the product is not in the same condition, and does not test the same as you received it, you will be subject to a refusal and return, a determined restocking fee, repair charge, or disqualification. RETURN AUTHORIZATION (RA) number and instructions is required before sending any items. Shipping and handling charges are non-refundable.

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

DEPENDING ON YOUR COUNTRY'S MAXIMUM INSURANCE RULES "PRIORITY or EXPRESS SHIPPING" may be required for certain countries, U.K.,Italy, Russia, Indonesia, Australia, Pacific Rim, and others.(Please kindly ASK before you bid or we reserve the right to cancel your bid)

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.


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