ATTENTION INTERNATIONAL BUYERS - Please Read Our Shipping Terns, Standard Shipping can take up to 3 MONTHS

 

Tube Type / Number: 6K7G
Actual Brand*: National Union NU
Printed Brand: National Union
Quantity: 1 Piece-Single
Matching Date Codes? No
Plate Construction: Black Smooth
Getter Construction: Bottom []
Country of Manufacture: USA
Visible Date Codes: J4 MC MR
Lettering Condition: 90 Percent
Number of Mica Spacers: 2
Mica Spacer Shape: Side U
Glass Coating: Clear
Engraved Base? No
Boxes (always included): All WB/Generic
Notes: 0
Tested For & Matched By: Gm (General Mutual Transconductance)

Test Results: 52

Minimum Good Value: 32
NOS Test Value: 50
Life Calculation: 100+where 65% = fail)

Tests as NOS? Yes
True NOS?* No

** Please note, many tubes will test NOS but will actually have a few hours of use on them. A truly NOS tube will have excellent getter flashing condition, no dirt/grime, usually in the original box, and no filament deposits. If a tube is listed as "tests NOS" but is listed as "not True NOS" please expect the tube to have a small amount of use *

All tubes have been tested using only the best tube testers. We have a large fleet of tube testers, and every single one of them has been calibrated within the last year by industry experts. We mainly use the Hickok TV-7D/U, but occasionally we may use a Hickok 539, 533A, or 600A.

Shipping

We have a retail location located in Easthampton MA. You are more than welcome to pickup your order in person. Our typical hours are Monday - Friday 9:00 AM to 5:00 PM but we do offer extended hours so call first!

Combined Shipping

We do combine shipping. Orders placed on our website are automatically combined and calculated. Orders placed on other sites like reverb.com do not offer combined shipping. We can refund you the difference retroactively if you ask, but it's easier for everyone if you order on our website.

Typical transit times

Domestic USPS First Class Mail: 3-5 Days, includes tracking

Domestic USPS Priority Mail: 1-3 Days, includes tracking

International USPS First Class Mail: 3-6 weeks but up to 3 months! - without tracking

International USPS Priority Mail: 6-10 Days - includes tracking


INTERNATIONAL CUSTOMERS - READ

ALL international orders will be shipped by USPS First Class Mail International by default, which is the cheapest method. This shipping service is very cost-effective, but you will not be able to track your package. It usually takes 3-6 weeks for a First Class Mail International package to arrive, but can take UP TO 3 MONTHS FOR DELIVERY.

We guarantee all of our shipments, but we do ask that our customers wait 3 months before we grant a full refund due to a lost package. We have shipped thousands of items internationally using First Class Mail and while we have had plenty take months to arrive, less than 0.01% have gone missing.

DEPENDING ON YOUR COUNTRY'S POLICIES, YOU MAY BE RESPONSIBLE FOR IMPORT TAXES WHEN ORDERING OVERSEAS FROM US. WE ARE NOT RESPONSIBLE FOR ANY TAXES, DUTIES, OR CUSTOMS FEES. WE WILL NOT FALSIFY THE VALUE OF AN ITEM TO AVOID CUSTOMS TAXES. DOING SO IS ILLEGAL AND CAN RESULT IN SEIZURE OF YOUR ITEM.


Returns & Guarantees

 

Vintage & NOS tubes are guaranteed for 30 days from the date of purchase

 

New Production tubes are guaranteed for 90 days

 

We do not accept returns on the subjective basis of sonic qualities. If you are looking to tube roll on our dime, look elsewhere

All of our products are guaranteed unless otherwise stated. All items all guaranteed to be as described and free of any electrical or operational faults such as shorts, low test, microphonics, noise etc. Returns will be accepted for tubes that don't test as described in most cases, but we reserve the right to refuse a return if the tube was not tested properly by the customer; We also reserve the right to refuse a return if it is clear the item was used improperly. For example-a tube installed in the wrong amplifier. We will not accept returns for any cosmetic issues such as crooked bottles, dirty glass, poor boxes etc, unless item condition differs from the description nor will we accept a return for buyers remorse. If you bought the wrong item, you may return it but we will charge a 15% restocking fee.

 

 

About Us

VIVA TUBES LLC 142 Pleasant St Suite 402, Easthampton, MA 01027  

VIVA TUBES is your source for vintage vacuum tubes. Located in the Brickyard Mill Building in Easthampton, MA, just next to the Eastworks building. With over 1,000,000 tubes and parts in our 7000 square foot warehouse, we carry everything from high-end audio tubes to HAM tubes. We also have a variety of vintage electronic parts as well as audio equipment and more! We have a vast inventory of thousands and thousands of tubes. We have a full service retail location which is the only of it's kind.


What started as a hobby several years ago to fund my (Dave Mell) obsession with tube audio, VIVA TUBES quickly grew into a full time business. Our team is still growing and we are committed to providing the best customer service and quality tubes in the business.


Shop with us and find out why the majority of our customers are repeat customers.

WE ARE ALWAYS BUYING TUBES - LARGE OR SMALL LOTS - WE CAN ACCEPT SHIPMENTS OR MAKE AN APPOINTMENT TO VIEW LOCALLY - PLEASE CONTACT

Caractéristiques du produit

État
Neuf (Neuf)
Le matériel en état « Neuf » n'est vendu que par un vendeur autorisé ou un fabricant et inclut l'emballage d'origine.en savoir plus
Marque National
Modèle Tests NOS Union NU USA 6K7G Smooth Plate [] Get Vacuum Tube
Finition Black
Catégories Tubes

Top notch seller. Quick shipment, well matched sets.

Ben S. - March 01, 2020

Zachary Z. - March 01, 2020

Well protected and fast ship

Andrew B. - March 01, 2020

Moyens de paiement acceptés

Politique d’expédition

Disponible pour retrait sur place de Easthampton, MA, États-Unis

Expédie de Easthampton, MA, États-Unis vers :

États-Unis continentaux
€4,88EUR
États-Unis
€4,88EUR
Partout ailleurs
€13,56EUR

A note on combined shipping. -at this time Reverb DOES NOT OFFER COMBINED SHIPPING as an option. While we do combine shipments on other platforms, we cannot and will not combine shipping on Reverb. If you would like combined shipping you must place your order elsewhere.

One Day or LESS Handling Time

Domestic & International buyers can choose USPS First Class Mail or USPS Priority Mail.

USPS First Class Mail is our default shipping method. Other options available only by request.

Rates:

For Domestic (USA) buyers shipping for the first tube, pair, or quad will cost $4.99 + $1.00 for each additional tube, pair, or quad.

For International buyers, shipping for the first tube, pair, or quad will cost $12.99 + $2.00 for each additional tube, pair, or quad.

Typical transit times:

Domestic USPS First Class Mail: 3-5 Days, includes tracking.

Domestic USPS Priority Mail: 1-3 Days, includes tracking.

International USPS First Class Mail: 3-6 weeks but up to 3 months! - NO TRACKING.

International USPS Priority Mail: 6-10 Days - Includes Tracking.

INTERNATIONAL CUSTOMERS - READ

ALL international orders will be shipped by USPS First Class Mail International by default, which is the cheapest method at $9.99. This shipping service is very cost-effective, but you will not be able to track your package. It usually takes 3-6 weeks for a First Class Mail International package to arrive, but can take UP TO 3 MONTHS FOR DELIVERY.

We guarantee all of our shipments, but we do ask that our customers wait 3 months before we grant a full refund due to a lost package. We have shipped thousands of items internationally using First Class Mail and while we have had plenty take months to arrive, we have almost zero packages ever go missing.
DEPENDING ON YOUR COUNTRY'S POLICIES, YOU MAY BE RESPONSIBLE FOR IMPORT TAXES WHEN ORDERING OVERSEAS FROM US. WE ARE NOT RESPONSIBLE FOR ANY TAXES, DUTIES, OR CUSTOMS FEES. WE WILL NOT FALSIFY THE VALUE OF AN ITEM TO AVOID CUSTOMS TAXES. DOING SO IS ILLEGAL AND CAN RESULT IN SEIZURE OF YOUR ITEM.

Politique de taxes

Les taxes sont facturées dans les régions suivantes soit par le vendeur, selon sa politique fiscale, soit par Reverb en tant que facilitateur de marketplace :

Alabama*
Arizona*
Arkansas*
California*
Colorado*
Connecticut*
District of Columbia*
Hawaii*
Idaho*
Illinois*
Indiana*
Iowa*
Kentucky*
Maine*
Maryland*
Massachusetts*
Michigan*
Minnesota*
Nebraska*
Nevada*
New Jersey*
New Mexico*
New York*
North Carolina*
North Dakota*
Ohio*
Oklahoma*
Pennsylvania*
Rhode Island*
South Carolina*
South Dakota*
Tennessee*
Texas*
Utah*
Vermont*
Virginia*
Washington*
West Virginia*
Wisconsin*
Wyoming*
*État facilitateur de marketplace. Reverb perçoit la taxe au nom des vendeurs. En savoir plus

Politique de retour

Date limite de retour

Ce produit peut être retourné dans les 30 jours suivant sa réception.

Conditions générales

Les articles doivent être retournés dans leur état d’origine, tels que livrés avec l’ensemble de l’emballage d’origine, et sans aucun signe d’utilisation. L’acheteur assume l’entière responsabilité des frais d’expédition pour le retour, à moins que l’article n’ait pas été reçu conforme à sa description.

Remboursements

L’acheteur reçoit un remboursement intégral dans son mode de paiement initial moins les frais d’expédition.

Conditions particulières

All of our tubes are 100% guaranteed to arrive as described, test as described and to be void of any sound defects including microphonics and noise. We offer a 30 day return window from the day you receive the item.

PLEASE NOTE - While we accept returns for basically any fault, we DO NOT accept returns for buyer's remorse which includes buyers who decide they don't like the subjective tonal signature of a tube. We have had people exploit our generous return policy to tube roll on our dime so we have a strict policy against this behavior.

Simple shield
Achetez en toute confiance
La Protection Reverb vous couvre en toute circonstance. Nous offrons un lieu sécurisé pour les acheteurs et les vendeurs.

VIVA TUBES

Easthampton, MA, États-Unis
Membre depuis : Oct 2015

Badges du vendeur

Moyens de paiement acceptés

Carte de crédit
Bucks Reverb
Paypal
Tests NOS National Union NU USA 6K7G Black Smooth Plate [] Get Vacuum Tube
€9,35EUR
+ €13,56 Expédition

Hey ! Compte tenu de votre localisation, nous avons modifié vos paramètres:

Région d’expédition: France, Devise: EUR En savoir plus

Nous comprenons l'importance de la confidentialité en ligne et nous nous engageons à respecter le règlement général de l'UE sur la protection des données. Pour refléter notre engagement, nous avons mis à jour nos termes et conditions. En continuant à utiliser Reverb, vous acceptez ces mises à jour et notre politique en matière de cookies. En savoir plus.