Item Tag: Vacuum Tube

100% Guaranteed TubesAll tubes are tested for Gm, shorts, leaks, gas, and noise on one of our vintage, calibrated, or state of the art digital tube testers. Buy from the experts and avoid hassle!Visit our store to view our inventory of thousands of tubes both NOS & New Production We are an authorized dealer for New Sensor products including Sovtek, Electro-Harmonix, Mullard, Tung-Sol, and Genalex. We sell A grade quality stock, not factory seconds like many other sellers. International Buyers Please Read our Disclaimer Below – Standard Shipping can take 3 MONTHS or more – Do NOT Trust eBay Shipping Estimates Brand New JJ Electronic 5U4 / 5U4GB Rectifier Vacuum Tube JJ is an undisputed leader in modern vacuum tube manufacturing, and for good reason. Among rectifier tubes, their 5U4 (5U4GB) is an industry favorite, as it provides consistent performance along with great build quality at a reasonable price point. Precision Testing & Matching Test Data on the Box Power Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Plate Current (Ip) and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher tube tester; Preamp Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Gain and General Mutual Transconductance (Gm) at real world voltages on a Maxi-Matcher Preamp II tube tester; Rectifier Tubes: Checked for shorts, gas and leaks. Tested for and/or matched by Emissions on a calibrated Hickok TV-7 or Triplett 3444 tube tester. 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! All new production tubes ship for free so we do not combine shipping on new production tubes. We still combine shipping with vintage tubes. All orders before 1:00 PM EST ship same-day. All orders shipped within 1 business day. 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. Typical transit times: Domestic USPS First Class Mail: 3-9 Days, includes trackingDomestic USPS Priority Mail: 1-3 Days, includes trackingInternational USPS First Class Mail: Typically 3-6 weeks but up to 3 months! – NO TRACKINGInternational USPS Priority Mail: 6-14 Days – Includes Tracking International Shipping Disclaimer International orders will be shipped by USPS First Class Mail International by default, which is the cheapest possible way and you do get what you pay for. This shipping service is very cost-effective and extremely safe, 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 DUE TO CUSTOMS, ESPECIALLY IN CERTAIN STRICT COUNTRIES LIKE RUSSIA, CHINA OR BRAZIL. We guarantee all of our shipments, but we do ask that our customers wait 90 days 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 several months to arrive, we have had less than 10 actual lost packages. * Remember – You Have 6 Months of Coverage Through PayPal or your Credit Card company * 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.Guarantee & Returns All of our products are guaranteed unless otherwise stated. We do not accept returns on the subjective basis of sonic qualities. 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.Vintage & NOS tubes are guaranteed for 30 days from the date of purchase;New Production tubes are guaranteed for 90 days. About UsCome visit the only retail tube store in the USA! VIVA TUBES is your source for vintage vacuum tubes. Located in an appropriately rustic mill building in Easthampton MA. We share our building with a Recording Studio, Brewery, Practice Spaces and many other small businesses. . We carry everything from vintage audio tubes and new productions 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.What started as a hobby several years ago to fund my obsession with tube audio, VIVA TUBES has quickly grown into a full time business;We pride ourselves on our excellent customer service and great attention to testing and product detail. 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